<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2024 Workiva-->
<!--r:1744637b-a623-4e7c-9e70-2784778b9428,g:3206b0a2-a692-463d-875e-50f8fdbd6ccc-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/all" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#all"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-default"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-domain"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member"/>
  <link:roleRef roleURI="http://lucidmotors.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETSParenthetical" xlink:type="simple" xlink:href="lcid-20240630.xsd#CONDENSEDCONSOLIDATEDBALANCESHEETSParenthetical"/>
  <link:definitionLink xlink:role="http://lucidmotors.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETSParenthetical" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_f95b8ca8-a804-488a-82e2-985e4538006f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_af9a2d0b-8b51-45ac-b20b-3eca9cd074fa" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_f95b8ca8-a804-488a-82e2-985e4538006f" xlink:to="loc_us-gaap_StatementTable_af9a2d0b-8b51-45ac-b20b-3eca9cd074fa" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_d54c5ae6-6782-4f7c-9f58-a15ba86498fe" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_af9a2d0b-8b51-45ac-b20b-3eca9cd074fa" xlink:to="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_d54c5ae6-6782-4f7c-9f58-a15ba86498fe" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_d54c5ae6-6782-4f7c-9f58-a15ba86498fe_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_d54c5ae6-6782-4f7c-9f58-a15ba86498fe" xlink:to="loc_us-gaap_RelatedPartyDomain_d54c5ae6-6782-4f7c-9f58-a15ba86498fe_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_d784cca4-45a0-4ee3-8a68-40fd80d0b2d0" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_d54c5ae6-6782-4f7c-9f58-a15ba86498fe" xlink:to="loc_us-gaap_RelatedPartyDomain_d784cca4-45a0-4ee3-8a68-40fd80d0b2d0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyMember_12c861d5-c058-4d62-b070-e3fb4cffefc8" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain_d784cca4-45a0-4ee3-8a68-40fd80d0b2d0" xlink:to="loc_us-gaap_RelatedPartyMember_12c861d5-c058-4d62-b070-e3fb4cffefc8" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent_ff2b23b9-6423-4b07-966d-f8949705e230" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccountsReceivableNetCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_f95b8ca8-a804-488a-82e2-985e4538006f" xlink:to="loc_us-gaap_AccountsReceivableNetCurrent_ff2b23b9-6423-4b07-966d-f8949705e230" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesCurrent_9da7ca8f-5c1f-4516-8198-8d6ad8a52be2" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherLiabilitiesCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_f95b8ca8-a804-488a-82e2-985e4538006f" xlink:to="loc_us-gaap_OtherLiabilitiesCurrent_9da7ca8f-5c1f-4516-8198-8d6ad8a52be2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrent_0d6f9041-f5a9-463a-b3d8-81b78c62ffe2" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherLiabilitiesNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_f95b8ca8-a804-488a-82e2-985e4538006f" xlink:to="loc_us-gaap_OtherLiabilitiesNoncurrent_0d6f9041-f5a9-463a-b3d8-81b78c62ffe2" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TemporaryEquityParOrStatedValuePerShare_695028e3-771a-419f-8bc9-0ae1e3a7618a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_TemporaryEquityParOrStatedValuePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_f95b8ca8-a804-488a-82e2-985e4538006f" xlink:to="loc_us-gaap_TemporaryEquityParOrStatedValuePerShare_695028e3-771a-419f-8bc9-0ae1e3a7618a" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TemporaryEquitySharesAuthorized_4b80ccd0-64e3-4ec1-8f1f-99a0f86ae50f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_TemporaryEquitySharesAuthorized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_f95b8ca8-a804-488a-82e2-985e4538006f" xlink:to="loc_us-gaap_TemporaryEquitySharesAuthorized_4b80ccd0-64e3-4ec1-8f1f-99a0f86ae50f" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TemporaryEquitySharesIssued_e3f80278-b8d5-490a-be4a-745ed18d1fbf" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_TemporaryEquitySharesIssued"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_f95b8ca8-a804-488a-82e2-985e4538006f" xlink:to="loc_us-gaap_TemporaryEquitySharesIssued_e3f80278-b8d5-490a-be4a-745ed18d1fbf" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TemporaryEquitySharesOutstanding_93512507-b4b0-4244-880e-a7c6db1cab9b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_TemporaryEquitySharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_f95b8ca8-a804-488a-82e2-985e4538006f" xlink:to="loc_us-gaap_TemporaryEquitySharesOutstanding_93512507-b4b0-4244-880e-a7c6db1cab9b" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockParOrStatedValuePerShare_0b4c8f0c-a73c-4e48-b0eb-8bf4aaab9641" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonStockParOrStatedValuePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_f95b8ca8-a804-488a-82e2-985e4538006f" xlink:to="loc_us-gaap_CommonStockParOrStatedValuePerShare_0b4c8f0c-a73c-4e48-b0eb-8bf4aaab9641" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesAuthorized_e67af201-ff4f-434c-961f-09275568978a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonStockSharesAuthorized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_f95b8ca8-a804-488a-82e2-985e4538006f" xlink:to="loc_us-gaap_CommonStockSharesAuthorized_e67af201-ff4f-434c-961f-09275568978a" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesIssued_33cb9c58-ac8e-440a-b49f-cc3383ee40fd" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonStockSharesIssued"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_f95b8ca8-a804-488a-82e2-985e4538006f" xlink:to="loc_us-gaap_CommonStockSharesIssued_33cb9c58-ac8e-440a-b49f-cc3383ee40fd" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_8e4bb8ae-f1b3-444a-a95a-0b1c0245899b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonStockSharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_f95b8ca8-a804-488a-82e2-985e4538006f" xlink:to="loc_us-gaap_CommonStockSharesOutstanding_8e4bb8ae-f1b3-444a-a95a-0b1c0245899b" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockCommonShares_f85918c8-d5fe-4858-9fe5-a05d046ef3c2" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_TreasuryStockCommonShares"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_f95b8ca8-a804-488a-82e2-985e4538006f" xlink:to="loc_us-gaap_TreasuryStockCommonShares_f85918c8-d5fe-4858-9fe5-a05d046ef3c2" xlink:type="arc" order="11"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://lucidmotors.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONSANDCOMPREHENSIVELOSSParenthetical" xlink:type="simple" xlink:href="lcid-20240630.xsd#CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONSANDCOMPREHENSIVELOSSParenthetical"/>
  <link:definitionLink xlink:role="http://lucidmotors.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONSANDCOMPREHENSIVELOSSParenthetical" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_f90eba81-6f89-4602-a6a0-aa72467d1e46" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_036fa241-b71a-4ac4-8366-5a90e3b2b662" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_f90eba81-6f89-4602-a6a0-aa72467d1e46" xlink:to="loc_us-gaap_StatementTable_036fa241-b71a-4ac4-8366-5a90e3b2b662" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_aba7c290-9e04-4904-9230-9314eaef46eb" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_036fa241-b71a-4ac4-8366-5a90e3b2b662" xlink:to="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_aba7c290-9e04-4904-9230-9314eaef46eb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_aba7c290-9e04-4904-9230-9314eaef46eb_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_aba7c290-9e04-4904-9230-9314eaef46eb" xlink:to="loc_us-gaap_RelatedPartyDomain_aba7c290-9e04-4904-9230-9314eaef46eb_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_5fa46819-933e-495f-9d3a-ce62aefe0384" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_aba7c290-9e04-4904-9230-9314eaef46eb" xlink:to="loc_us-gaap_RelatedPartyDomain_5fa46819-933e-495f-9d3a-ce62aefe0384" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyMember_b8982314-bcdd-4e57-8dd2-2c7434e0bca0" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain_5fa46819-933e-495f-9d3a-ce62aefe0384" xlink:to="loc_us-gaap_RelatedPartyMember_b8982314-bcdd-4e57-8dd2-2c7434e0bca0" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Revenues_743c2e67-e5d4-4047-8cda-8ee34e1db56e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_Revenues"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_f90eba81-6f89-4602-a6a0-aa72467d1e46" xlink:to="loc_us-gaap_Revenues_743c2e67-e5d4-4047-8cda-8ee34e1db56e" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://lucidmotors.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFREDEEMABLECONVERTIBLEPREFERREDSTOCKANDSTOCKHOLDERSEQUITY" xlink:type="simple" xlink:href="lcid-20240630.xsd#CONDENSEDCONSOLIDATEDSTATEMENTSOFREDEEMABLECONVERTIBLEPREFERREDSTOCKANDSTOCKHOLDERSEQUITY"/>
  <link:definitionLink xlink:role="http://lucidmotors.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFREDEEMABLECONVERTIBLEPREFERREDSTOCKANDSTOCKHOLDERSEQUITY" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_9f2b8c73-e475-4ffe-bae5-0938e7134e3a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_a158a22a-0be4-4e24-ac87-6c458de22aa4" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_9f2b8c73-e475-4ffe-bae5-0938e7134e3a" xlink:to="loc_us-gaap_StatementTable_a158a22a-0be4-4e24-ac87-6c458de22aa4" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_d928911c-e8c6-4e2d-aab7-325a29e8da27" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementEquityComponentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_a158a22a-0be4-4e24-ac87-6c458de22aa4" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_d928911c-e8c6-4e2d-aab7-325a29e8da27" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_d928911c-e8c6-4e2d-aab7-325a29e8da27_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_d928911c-e8c6-4e2d-aab7-325a29e8da27" xlink:to="loc_us-gaap_EquityComponentDomain_d928911c-e8c6-4e2d-aab7-325a29e8da27_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_14a83718-dae2-435f-8c5b-ca0d7f4f68ba" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_d928911c-e8c6-4e2d-aab7-325a29e8da27" xlink:to="loc_us-gaap_EquityComponentDomain_14a83718-dae2-435f-8c5b-ca0d7f4f68ba" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockMember_d8c88eca-638d-456e-9ef3-25cab1c28db9" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_14a83718-dae2-435f-8c5b-ca0d7f4f68ba" xlink:to="loc_us-gaap_CommonStockMember_d8c88eca-638d-456e-9ef3-25cab1c28db9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapitalMember_0e69a359-f9b8-43db-8dec-8a2e00b289a1" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AdditionalPaidInCapitalMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_14a83718-dae2-435f-8c5b-ca0d7f4f68ba" xlink:to="loc_us-gaap_AdditionalPaidInCapitalMember_0e69a359-f9b8-43db-8dec-8a2e00b289a1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockCommonMember_766b5ea6-50b8-40a9-aa6a-4e221fd0e04d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_TreasuryStockCommonMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_14a83718-dae2-435f-8c5b-ca0d7f4f68ba" xlink:to="loc_us-gaap_TreasuryStockCommonMember_766b5ea6-50b8-40a9-aa6a-4e221fd0e04d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_a8eaaacd-d023-4010-ada4-41c7da299cc6" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_14a83718-dae2-435f-8c5b-ca0d7f4f68ba" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_a8eaaacd-d023-4010-ada4-41c7da299cc6" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsMember_a18ea095-c58b-417a-960a-e0266238b859" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RetainedEarningsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_14a83718-dae2-435f-8c5b-ca0d7f4f68ba" xlink:to="loc_us-gaap_RetainedEarningsMember_a18ea095-c58b-417a-960a-e0266238b859" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_a37d74d1-b1da-41b9-bca4-f917b67b2f2c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_a158a22a-0be4-4e24-ac87-6c458de22aa4" xlink:to="loc_us-gaap_StatementClassOfStockAxis_a37d74d1-b1da-41b9-bca4-f917b67b2f2c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_a37d74d1-b1da-41b9-bca4-f917b67b2f2c_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_a37d74d1-b1da-41b9-bca4-f917b67b2f2c" xlink:to="loc_us-gaap_ClassOfStockDomain_a37d74d1-b1da-41b9-bca4-f917b67b2f2c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_04b462e5-b171-4327-8ecd-e8ba9dcb6be8" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_a37d74d1-b1da-41b9-bca4-f917b67b2f2c" xlink:to="loc_us-gaap_ClassOfStockDomain_04b462e5-b171-4327-8ecd-e8ba9dcb6be8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RedeemableConvertiblePreferredStockMember_24ac87f6-c28a-4cdd-ac84-0dc2aecb576e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RedeemableConvertiblePreferredStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_04b462e5-b171-4327-8ecd-e8ba9dcb6be8" xlink:to="loc_us-gaap_RedeemableConvertiblePreferredStockMember_24ac87f6-c28a-4cdd-ac84-0dc2aecb576e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsidiarySaleOfStockAxis_4752a007-479f-4dfd-b817-d5f6a4d950cb" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsidiarySaleOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_a158a22a-0be4-4e24-ac87-6c458de22aa4" xlink:to="loc_us-gaap_SubsidiarySaleOfStockAxis_4752a007-479f-4dfd-b817-d5f6a4d950cb" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNameOfTransactionDomain_4752a007-479f-4dfd-b817-d5f6a4d950cb_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SaleOfStockNameOfTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsidiarySaleOfStockAxis_4752a007-479f-4dfd-b817-d5f6a4d950cb" xlink:to="loc_us-gaap_SaleOfStockNameOfTransactionDomain_4752a007-479f-4dfd-b817-d5f6a4d950cb_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNameOfTransactionDomain_26dadad8-bd55-46fe-983e-2d58d32d4c31" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SaleOfStockNameOfTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsidiarySaleOfStockAxis_4752a007-479f-4dfd-b817-d5f6a4d950cb" xlink:to="loc_us-gaap_SaleOfStockNameOfTransactionDomain_26dadad8-bd55-46fe-983e-2d58d32d4c31" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OverAllotmentOptionMember_da495714-0eb2-4388-9457-782b6adafcb0" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OverAllotmentOptionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SaleOfStockNameOfTransactionDomain_26dadad8-bd55-46fe-983e-2d58d32d4c31" xlink:to="loc_us-gaap_OverAllotmentOptionMember_da495714-0eb2-4388-9457-782b6adafcb0" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_A2023SubscriptionAgreementMember_07bbb113-03b0-408d-a90d-0b1421219cd0" xlink:href="lcid-20240630.xsd#lcid_A2023SubscriptionAgreementMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SaleOfStockNameOfTransactionDomain_26dadad8-bd55-46fe-983e-2d58d32d4c31" xlink:to="loc_lcid_A2023SubscriptionAgreementMember_07bbb113-03b0-408d-a90d-0b1421219cd0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInTemporaryEquityRollForward_56f3e09a-28d7-4987-914e-15010a0b8e49" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncreaseDecreaseInTemporaryEquityRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_9f2b8c73-e475-4ffe-bae5-0938e7134e3a" xlink:to="loc_us-gaap_IncreaseDecreaseInTemporaryEquityRollForward_56f3e09a-28d7-4987-914e-15010a0b8e49" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TemporaryEquitySharesOutstanding_17180d38-0857-4b0d-90e2-eea85e927b90" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_TemporaryEquitySharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInTemporaryEquityRollForward_56f3e09a-28d7-4987-914e-15010a0b8e49" xlink:to="loc_us-gaap_TemporaryEquitySharesOutstanding_17180d38-0857-4b0d-90e2-eea85e927b90" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TemporaryEquityCarryingAmountAttributableToParent_4c1c2540-bea4-4fd7-9cb1-04c25ea5c1fd" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_TemporaryEquityCarryingAmountAttributableToParent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInTemporaryEquityRollForward_56f3e09a-28d7-4987-914e-15010a0b8e49" xlink:to="loc_us-gaap_TemporaryEquityCarryingAmountAttributableToParent_4c1c2540-bea4-4fd7-9cb1-04c25ea5c1fd" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_TemporaryEquityStockIssuedDuringPeriodSharesNewIssues_60dc6e58-3a62-461b-a7ac-1126261aacd9" xlink:href="lcid-20240630.xsd#lcid_TemporaryEquityStockIssuedDuringPeriodSharesNewIssues"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInTemporaryEquityRollForward_56f3e09a-28d7-4987-914e-15010a0b8e49" xlink:to="loc_lcid_TemporaryEquityStockIssuedDuringPeriodSharesNewIssues_60dc6e58-3a62-461b-a7ac-1126261aacd9" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TemporaryEquityStockIssuedDuringPeriodValueNewIssues_569efaae-e705-4918-8b31-bc5553d70e9d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_TemporaryEquityStockIssuedDuringPeriodValueNewIssues"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInTemporaryEquityRollForward_56f3e09a-28d7-4987-914e-15010a0b8e49" xlink:to="loc_us-gaap_TemporaryEquityStockIssuedDuringPeriodValueNewIssues_569efaae-e705-4918-8b31-bc5553d70e9d" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TemporaryEquityAccretionToRedemptionValue_f374f820-05db-4b79-8942-82fa27067c23" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_TemporaryEquityAccretionToRedemptionValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInTemporaryEquityRollForward_56f3e09a-28d7-4987-914e-15010a0b8e49" xlink:to="loc_us-gaap_TemporaryEquityAccretionToRedemptionValue_f374f820-05db-4b79-8942-82fa27067c23" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TemporaryEquitySharesOutstanding_8a05914a-9f9f-48a3-9edb-7455dbc421f1" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_TemporaryEquitySharesOutstanding"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TemporaryEquityCarryingAmountAttributableToParent_5d164f0b-dc8b-4c8e-bfe3-eed8e5545151" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_TemporaryEquityCarryingAmountAttributableToParent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_7a07ad55-065d-4e85-978e-46302eaf982a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncreaseDecreaseInStockholdersEquityRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_9f2b8c73-e475-4ffe-bae5-0938e7134e3a" xlink:to="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_7a07ad55-065d-4e85-978e-46302eaf982a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_1b952286-80df-4124-b8f2-8f4931465a15" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonStockSharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_7a07ad55-065d-4e85-978e-46302eaf982a" xlink:to="loc_us-gaap_CommonStockSharesOutstanding_1b952286-80df-4124-b8f2-8f4931465a15" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_4aaed41c-eb73-4504-8de6-5e6bba410e73" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockholdersEquity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_7a07ad55-065d-4e85-978e-46302eaf982a" xlink:to="loc_us-gaap_StockholdersEquity_4aaed41c-eb73-4504-8de6-5e6bba410e73" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_242ee752-af32-45e2-a3d1-09349ce90b1b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NetIncomeLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_7a07ad55-065d-4e85-978e-46302eaf982a" xlink:to="loc_us-gaap_NetIncomeLoss_242ee752-af32-45e2-a3d1-09349ce90b1b" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_f802e200-bdf6-4302-8026-3954bb58b900" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_7a07ad55-065d-4e85-978e-46302eaf982a" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_f802e200-bdf6-4302-8026-3954bb58b900" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation_8250d66a-3a06-44e2-a4d2-5a006af44c96" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_7a07ad55-065d-4e85-978e-46302eaf982a" xlink:to="loc_us-gaap_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation_8250d66a-3a06-44e2-a4d2-5a006af44c96" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures_35727503-c2aa-4cf0-962f-0d0d6055f108" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_7a07ad55-065d-4e85-978e-46302eaf982a" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesRestrictedStockAwardNetOfForfeitures_35727503-c2aa-4cf0-962f-0d0d6055f108" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures_e59b0fd4-9cca-4ade-b1a2-08ba90199df8" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_7a07ad55-065d-4e85-978e-46302eaf982a" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures_e59b0fd4-9cca-4ade-b1a2-08ba90199df8" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans_8d237179-bc94-4e36-8754-3c11278f48c9" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_7a07ad55-065d-4e85-978e-46302eaf982a" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans_8d237179-bc94-4e36-8754-3c11278f48c9" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan_896e0ba9-4ca1-4add-8a2f-bd772806a951" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_7a07ad55-065d-4e85-978e-46302eaf982a" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan_896e0ba9-4ca1-4add-8a2f-bd772806a951" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_19ff2a24-0ae0-404a-9bbe-7ed3758c071b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_7a07ad55-065d-4e85-978e-46302eaf982a" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_19ff2a24-0ae0-404a-9bbe-7ed3758c071b" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised_fbf6e6e8-3964-43cb-a962-7f3eabc8882d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_7a07ad55-065d-4e85-978e-46302eaf982a" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised_fbf6e6e8-3964-43cb-a962-7f3eabc8882d" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesNewIssues_ff1f8ddf-04f7-4f77-b743-4a199053c264" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockIssuedDuringPeriodSharesNewIssues"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_7a07ad55-065d-4e85-978e-46302eaf982a" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesNewIssues_ff1f8ddf-04f7-4f77-b743-4a199053c264" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueNewIssues_e6a000dd-7aba-4f9b-9873-e13ec1cea41e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockIssuedDuringPeriodValueNewIssues"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_7a07ad55-065d-4e85-978e-46302eaf982a" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueNewIssues_e6a000dd-7aba-4f9b-9873-e13ec1cea41e" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockAccretionOfRedemptionDiscount_09d4c47a-bacc-4479-bb3e-8ca00490661e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PreferredStockAccretionOfRedemptionDiscount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_7a07ad55-065d-4e85-978e-46302eaf982a" xlink:to="loc_us-gaap_PreferredStockAccretionOfRedemptionDiscount_09d4c47a-bacc-4479-bb3e-8ca00490661e" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_b1a43900-b7c3-48be-b4ae-064786df8a09" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_7a07ad55-065d-4e85-978e-46302eaf982a" xlink:to="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_b1a43900-b7c3-48be-b4ae-064786df8a09" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_6a326e6c-0474-4636-aea6-49a3793d14f0" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonStockSharesOutstanding"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_d5824613-079b-4e7f-bb52-a52bb42eb835" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockholdersEquity"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://lucidmotors.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS" xlink:type="simple" xlink:href="lcid-20240630.xsd#CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS"/>
  <link:definitionLink xlink:role="http://lucidmotors.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWS" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_6e6bcf0a-2ad9-4afa-84d9-9ee9debd4bb7" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_4ccbd856-44ba-4245-82ca-12c1573568c3" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_6e6bcf0a-2ad9-4afa-84d9-9ee9debd4bb7" xlink:to="loc_us-gaap_StatementTable_4ccbd856-44ba-4245-82ca-12c1573568c3" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightAxis_c4b73b19-4437-4bc4-ae93-e0d20b8c753f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfWarrantOrRightAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_4ccbd856-44ba-4245-82ca-12c1573568c3" xlink:to="loc_us-gaap_ClassOfWarrantOrRightAxis_c4b73b19-4437-4bc4-ae93-e0d20b8c753f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_c4b73b19-4437-4bc4-ae93-e0d20b8c753f_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_c4b73b19-4437-4bc4-ae93-e0d20b8c753f" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_c4b73b19-4437-4bc4-ae93-e0d20b8c753f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_ac1103b3-0bbe-4889-bb1f-d2d7f14f5916" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_c4b73b19-4437-4bc4-ae93-e0d20b8c753f" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_ac1103b3-0bbe-4889-bb1f-d2d7f14f5916" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_CommonStockWarrantLiabilityMember_d5e543ae-3ca1-4d69-87cf-c01dd119d99f" xlink:href="lcid-20240630.xsd#lcid_CommonStockWarrantLiabilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightDomain_ac1103b3-0bbe-4889-bb1f-d2d7f14f5916" xlink:to="loc_lcid_CommonStockWarrantLiabilityMember_d5e543ae-3ca1-4d69-87cf-c01dd119d99f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsidiarySaleOfStockAxis_73f10288-1a72-4e84-9aa8-8d3f34ff8d85" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsidiarySaleOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_4ccbd856-44ba-4245-82ca-12c1573568c3" xlink:to="loc_us-gaap_SubsidiarySaleOfStockAxis_73f10288-1a72-4e84-9aa8-8d3f34ff8d85" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNameOfTransactionDomain_73f10288-1a72-4e84-9aa8-8d3f34ff8d85_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SaleOfStockNameOfTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsidiarySaleOfStockAxis_73f10288-1a72-4e84-9aa8-8d3f34ff8d85" xlink:to="loc_us-gaap_SaleOfStockNameOfTransactionDomain_73f10288-1a72-4e84-9aa8-8d3f34ff8d85_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNameOfTransactionDomain_70586d30-4c19-47a4-a1e2-1f4519d0df81" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SaleOfStockNameOfTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsidiarySaleOfStockAxis_73f10288-1a72-4e84-9aa8-8d3f34ff8d85" xlink:to="loc_us-gaap_SaleOfStockNameOfTransactionDomain_70586d30-4c19-47a4-a1e2-1f4519d0df81" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OverAllotmentOptionMember_420db953-00b2-4658-b7e1-993f1f16765d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OverAllotmentOptionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SaleOfStockNameOfTransactionDomain_70586d30-4c19-47a4-a1e2-1f4519d0df81" xlink:to="loc_us-gaap_OverAllotmentOptionMember_420db953-00b2-4658-b7e1-993f1f16765d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_A2023SubscriptionAgreementMember_151d8e08-0cee-43e2-96cf-9c63d32301af" xlink:href="lcid-20240630.xsd#lcid_A2023SubscriptionAgreementMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SaleOfStockNameOfTransactionDomain_70586d30-4c19-47a4-a1e2-1f4519d0df81" xlink:to="loc_lcid_A2023SubscriptionAgreementMember_151d8e08-0cee-43e2-96cf-9c63d32301af" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_a66d1dea-92ab-456a-bf4e-10086042b869" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_6e6bcf0a-2ad9-4afa-84d9-9ee9debd4bb7" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_a66d1dea-92ab-456a-bf4e-10086042b869" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_c5632038-200c-44cd-bf63-f1d87d6172fb" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NetIncomeLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_a66d1dea-92ab-456a-bf4e-10086042b869" xlink:to="loc_us-gaap_NetIncomeLoss_c5632038-200c-44cd-bf63-f1d87d6172fb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_f6f3c936-97b9-4702-a603-e084a12d10f9" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_a66d1dea-92ab-456a-bf4e-10086042b869" xlink:to="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_f6f3c936-97b9-4702-a603-e084a12d10f9" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_DepreciationAndAmortizationExcludingDebtDiscountsAndInsurancePremiums_485b69c6-090f-4ab5-ae48-2a56ed29de2f" xlink:href="lcid-20240630.xsd#lcid_DepreciationAndAmortizationExcludingDebtDiscountsAndInsurancePremiums"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_f6f3c936-97b9-4702-a603-e084a12d10f9" xlink:to="loc_lcid_DepreciationAndAmortizationExcludingDebtDiscountsAndInsurancePremiums_485b69c6-090f-4ab5-ae48-2a56ed29de2f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_AmortizationOfInsurancePremiums_6c325d56-b2a3-453c-aa87-a13e7d63faff" xlink:href="lcid-20240630.xsd#lcid_AmortizationOfInsurancePremiums"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_f6f3c936-97b9-4702-a603-e084a12d10f9" xlink:to="loc_lcid_AmortizationOfInsurancePremiums_6c325d56-b2a3-453c-aa87-a13e7d63faff" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseRightOfUseAssetAmortizationExpense_99aad0d1-11fe-4e12-aa1e-31ec47f6cec3" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OperatingLeaseRightOfUseAssetAmortizationExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_f6f3c936-97b9-4702-a603-e084a12d10f9" xlink:to="loc_us-gaap_OperatingLeaseRightOfUseAssetAmortizationExpense_99aad0d1-11fe-4e12-aa1e-31ec47f6cec3" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensation_f66b823b-76d1-4aaf-91eb-4c36849f8785" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_f6f3c936-97b9-4702-a603-e084a12d10f9" xlink:to="loc_us-gaap_ShareBasedCompensation_f66b823b-76d1-4aaf-91eb-4c36849f8785" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_InventoryAndPurchaseObligationWriteDownNoncash_ce69e3f9-03a3-4aae-a687-2df349ec1c60" xlink:href="lcid-20240630.xsd#lcid_InventoryAndPurchaseObligationWriteDownNoncash"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_f6f3c936-97b9-4702-a603-e084a12d10f9" xlink:to="loc_lcid_InventoryAndPurchaseObligationWriteDownNoncash_ce69e3f9-03a3-4aae-a687-2df349ec1c60" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAdjustmentOfWarrants_a97b9700-b9a5-4033-a471-93e78be11ffd" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueAdjustmentOfWarrants"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_f6f3c936-97b9-4702-a603-e084a12d10f9" xlink:to="loc_us-gaap_FairValueAdjustmentOfWarrants_a97b9700-b9a5-4033-a471-93e78be11ffd" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquitySecuritiesFvNiUnrealizedGainLoss_3e23af16-3bff-47b5-89e8-f2d218cef8e7" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EquitySecuritiesFvNiUnrealizedGainLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_f6f3c936-97b9-4702-a603-e084a12d10f9" xlink:to="loc_us-gaap_EquitySecuritiesFvNiUnrealizedGainLoss_3e23af16-3bff-47b5-89e8-f2d218cef8e7" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeGainLossOnDerivativeNet_57a9c86f-a8d8-49f0-a40a-1454826ec9bd" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DerivativeGainLossOnDerivativeNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_f6f3c936-97b9-4702-a603-e084a12d10f9" xlink:to="loc_us-gaap_DerivativeGainLossOnDerivativeNet_57a9c86f-a8d8-49f0-a40a-1454826ec9bd" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments_c0d203a1-eb63-49d9-9b75-04199095feb0" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_f6f3c936-97b9-4702-a603-e084a12d10f9" xlink:to="loc_us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments_c0d203a1-eb63-49d9-9b75-04199095feb0" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNoncashIncomeExpense_eb6a4112-a6b7-46a8-ae4d-dad7542b5ad9" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherNoncashIncomeExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_f6f3c936-97b9-4702-a603-e084a12d10f9" xlink:to="loc_us-gaap_OtherNoncashIncomeExpense_eb6a4112-a6b7-46a8-ae4d-dad7542b5ad9" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_7b71bc1f-4374-4bd2-9182-32597e86393e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncreaseDecreaseInOperatingCapitalAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_a66d1dea-92ab-456a-bf4e-10086042b869" xlink:to="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_7b71bc1f-4374-4bd2-9182-32597e86393e" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_511e9594-d223-4d68-9f13-223cbd0adbe9" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncreaseDecreaseInAccountsReceivable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_7b71bc1f-4374-4bd2-9182-32597e86393e" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_511e9594-d223-4d68-9f13-223cbd0adbe9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInInventories_88d115f0-ce2d-4845-a75b-24b91b3f7dda" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncreaseDecreaseInInventories"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_7b71bc1f-4374-4bd2-9182-32597e86393e" xlink:to="loc_us-gaap_IncreaseDecreaseInInventories_88d115f0-ce2d-4845-a75b-24b91b3f7dda" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInPrepaidExpense_fea773fd-d5f8-4828-b2b1-ff7b6ddce1ea" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncreaseDecreaseInPrepaidExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_7b71bc1f-4374-4bd2-9182-32597e86393e" xlink:to="loc_us-gaap_IncreaseDecreaseInPrepaidExpense_fea773fd-d5f8-4828-b2b1-ff7b6ddce1ea" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherCurrentAssets_d54e16f7-e6cb-4632-92f9-e317f777a5b0" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncreaseDecreaseInOtherCurrentAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_7b71bc1f-4374-4bd2-9182-32597e86393e" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherCurrentAssets_d54e16f7-e6cb-4632-92f9-e317f777a5b0" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherNoncurrentAssets_ab2aeedd-5335-4cb3-9611-5d927f5f21a5" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncreaseDecreaseInOtherNoncurrentAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_7b71bc1f-4374-4bd2-9182-32597e86393e" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherNoncurrentAssets_ab2aeedd-5335-4cb3-9611-5d927f5f21a5" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayable_f65c2b85-8732-4212-85e6-166e2327a689" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncreaseDecreaseInAccountsPayable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_7b71bc1f-4374-4bd2-9182-32597e86393e" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsPayable_f65c2b85-8732-4212-85e6-166e2327a689" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInEmployeeRelatedLiabilities_7862a992-e173-4846-a946-f4dbdf7a9979" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncreaseDecreaseInEmployeeRelatedLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_7b71bc1f-4374-4bd2-9182-32597e86393e" xlink:to="loc_us-gaap_IncreaseDecreaseInEmployeeRelatedLiabilities_7862a992-e173-4846-a946-f4dbdf7a9979" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherCurrentLiabilities_db59be50-5036-4cc0-bafc-638acd066124" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncreaseDecreaseInOtherCurrentLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_7b71bc1f-4374-4bd2-9182-32597e86393e" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherCurrentLiabilities_db59be50-5036-4cc0-bafc-638acd066124" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherNoncurrentLiabilities_d0521a68-56e2-4455-8487-892319457893" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncreaseDecreaseInOtherNoncurrentLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_7b71bc1f-4374-4bd2-9182-32597e86393e" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherNoncurrentLiabilities_d0521a68-56e2-4455-8487-892319457893" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_97346295-dbd9-40e7-89ed-03897c1d2685" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_a66d1dea-92ab-456a-bf4e-10086042b869" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_97346295-dbd9-40e7-89ed-03897c1d2685" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_4f3b3476-91dc-4ceb-abe5-900c0cd70bf1" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_6e6bcf0a-2ad9-4afa-84d9-9ee9debd4bb7" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_4f3b3476-91dc-4ceb-abe5-900c0cd70bf1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_365cede0-e2bc-4508-87cf-e6feccfbf8e1" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_4f3b3476-91dc-4ceb-abe5-900c0cd70bf1" xlink:to="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_365cede0-e2bc-4508-87cf-e6feccfbf8e1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireInvestments_67da2bdd-5cb3-439a-b865-0b9c8e177422" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PaymentsToAcquireInvestments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_4f3b3476-91dc-4ceb-abe5-900c0cd70bf1" xlink:to="loc_us-gaap_PaymentsToAcquireInvestments_67da2bdd-5cb3-439a-b865-0b9c8e177422" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities_5b3ed132-73de-4fb2-a6b8-69dccdba4c56" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_4f3b3476-91dc-4ceb-abe5-900c0cd70bf1" xlink:to="loc_us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities_5b3ed132-73de-4fb2-a6b8-69dccdba4c56" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesDebt_0dbb4cfa-6c4f-405f-9341-703e0d5b7b25" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_4f3b3476-91dc-4ceb-abe5-900c0cd70bf1" xlink:to="loc_us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesDebt_0dbb4cfa-6c4f-405f-9341-703e0d5b7b25" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_97f41d73-5dae-4084-ae7a-f70e8c56c174" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PaymentsForProceedsFromOtherInvestingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_4f3b3476-91dc-4ceb-abe5-900c0cd70bf1" xlink:to="loc_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_97f41d73-5dae-4084-ae7a-f70e8c56c174" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_dee1ce6f-05c4-4c13-9257-0285a63a7a61" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_4f3b3476-91dc-4ceb-abe5-900c0cd70bf1" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_dee1ce6f-05c4-4c13-9257-0285a63a7a61" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_e46c9b63-cbd1-4b60-970f-372e47fee03e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_6e6bcf0a-2ad9-4afa-84d9-9ee9debd4bb7" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_e46c9b63-cbd1-4b60-970f-372e47fee03e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfCommonStock_120c8a78-431a-4236-9e42-905684c6be03" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ProceedsFromIssuanceOfCommonStock"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_e46c9b63-cbd1-4b60-970f-372e47fee03e" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfCommonStock_120c8a78-431a-4236-9e42-905684c6be03" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfConvertiblePreferredStock_1e4a314c-819a-4630-8564-2e09203aab37" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ProceedsFromIssuanceOfConvertiblePreferredStock"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_e46c9b63-cbd1-4b60-970f-372e47fee03e" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfConvertiblePreferredStock_1e4a314c-819a-4630-8564-2e09203aab37" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_PaymentsForIssuanceOfRedeemableConvertiblePreferredStock_966eb48a-49e5-4c3c-bd23-25ec5b74aec8" xlink:href="lcid-20240630.xsd#lcid_PaymentsForIssuanceOfRedeemableConvertiblePreferredStock"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_e46c9b63-cbd1-4b60-970f-372e47fee03e" xlink:to="loc_lcid_PaymentsForIssuanceOfRedeemableConvertiblePreferredStock_966eb48a-49e5-4c3c-bd23-25ec5b74aec8" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeasePrincipalPayments_21ec7630-20c7-4a77-b3e4-05eb688599d8" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FinanceLeasePrincipalPayments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_e46c9b63-cbd1-4b60-970f-372e47fee03e" xlink:to="loc_us-gaap_FinanceLeasePrincipalPayments_21ec7630-20c7-4a77-b3e4-05eb688599d8" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromRelatedPartyDebt_8681f40e-3e61-4b50-bdd0-88648182aef9" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ProceedsFromRelatedPartyDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_e46c9b63-cbd1-4b60-970f-372e47fee03e" xlink:to="loc_us-gaap_ProceedsFromRelatedPartyDebt_8681f40e-3e61-4b50-bdd0-88648182aef9" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfRelatedPartyDebt_4ea29d92-63ee-4997-bf9a-b7c33fcd932f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RepaymentsOfRelatedPartyDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_e46c9b63-cbd1-4b60-970f-372e47fee03e" xlink:to="loc_us-gaap_RepaymentsOfRelatedPartyDebt_4ea29d92-63ee-4997-bf9a-b7c33fcd932f" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromStockOptionsExercised_7b17d4f9-d039-4a6e-8ddc-977c5280575a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ProceedsFromStockOptionsExercised"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_e46c9b63-cbd1-4b60-970f-372e47fee03e" xlink:to="loc_us-gaap_ProceedsFromStockOptionsExercised_7b17d4f9-d039-4a6e-8ddc-977c5280575a" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromStockPlans_d4e3e77a-c089-4014-bce4-04bbb7efe1c6" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ProceedsFromStockPlans"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_e46c9b63-cbd1-4b60-970f-372e47fee03e" xlink:to="loc_us-gaap_ProceedsFromStockPlans_d4e3e77a-c089-4014-bce4-04bbb7efe1c6" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_97ed7400-76c6-45b3-8b28-893f66952094" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_e46c9b63-cbd1-4b60-970f-372e47fee03e" xlink:to="loc_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_97ed7400-76c6-45b3-8b28-893f66952094" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_01e06eab-496e-43c8-999a-653ed7b14a61" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_e46c9b63-cbd1-4b60-970f-372e47fee03e" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_01e06eab-496e-43c8-999a-653ed7b14a61" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_3315a6f7-b405-49af-9fbb-a23bb70ae4f9" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_6e6bcf0a-2ad9-4afa-84d9-9ee9debd4bb7" xlink:to="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_3315a6f7-b405-49af-9fbb-a23bb70ae4f9" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_78260af9-d657-429f-a061-89efd48964ea" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_6e6bcf0a-2ad9-4afa-84d9-9ee9debd4bb7" xlink:to="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_78260af9-d657-429f-a061-89efd48964ea" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_5d147a28-5d21-41f1-ac89-f57d7fd83cf7" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SupplementalCashFlowInformationAbstract_e202f86c-77e4-4864-8b84-99ece3bcddf6" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SupplementalCashFlowInformationAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_6e6bcf0a-2ad9-4afa-84d9-9ee9debd4bb7" xlink:to="loc_us-gaap_SupplementalCashFlowInformationAbstract_e202f86c-77e4-4864-8b84-99ece3bcddf6" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestPaidNet_8f674aba-7ba5-4132-bd64-eca895f3f5a0" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_InterestPaidNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SupplementalCashFlowInformationAbstract_e202f86c-77e4-4864-8b84-99ece3bcddf6" xlink:to="loc_us-gaap_InterestPaidNet_8f674aba-7ba5-4132-bd64-eca895f3f5a0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxesPaidNet_a9fcc028-d0ea-4bda-82f8-cd2c18b838ef" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncomeTaxesPaidNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SupplementalCashFlowInformationAbstract_e202f86c-77e4-4864-8b84-99ece3bcddf6" xlink:to="loc_us-gaap_IncomeTaxesPaidNet_a9fcc028-d0ea-4bda-82f8-cd2c18b838ef" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NoncashInvestingAndFinancingItemsAbstract_42916343-9c1c-4867-a79a-c1afe976604c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NoncashInvestingAndFinancingItemsAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_6e6bcf0a-2ad9-4afa-84d9-9ee9debd4bb7" xlink:to="loc_us-gaap_NoncashInvestingAndFinancingItemsAbstract_42916343-9c1c-4867-a79a-c1afe976604c" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_ChangeInCapitalExpendituresIncurredButNotYetPaid_434938b0-6cc2-4fdd-a633-18f298e432fb" xlink:href="lcid-20240630.xsd#lcid_ChangeInCapitalExpendituresIncurredButNotYetPaid"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NoncashInvestingAndFinancingItemsAbstract_42916343-9c1c-4867-a79a-c1afe976604c" xlink:to="loc_lcid_ChangeInCapitalExpendituresIncurredButNotYetPaid_434938b0-6cc2-4fdd-a633-18f298e432fb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_ChangeInCapitalExpendituresIncurredButNotYetPaidRelatedToGovernmentGrant_03ebc792-7532-424e-9022-b94ee212feeb" xlink:href="lcid-20240630.xsd#lcid_ChangeInCapitalExpendituresIncurredButNotYetPaidRelatedToGovernmentGrant"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NoncashInvestingAndFinancingItemsAbstract_42916343-9c1c-4867-a79a-c1afe976604c" xlink:to="loc_lcid_ChangeInCapitalExpendituresIncurredButNotYetPaidRelatedToGovernmentGrant_03ebc792-7532-424e-9022-b94ee212feeb" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_RightOfUseAssetObtainedInExchangeForLeaseLiability_7fd4f01e-42ae-4f2f-b2c8-96d4397473f9" xlink:href="lcid-20240630.xsd#lcid_RightOfUseAssetObtainedInExchangeForLeaseLiability"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NoncashInvestingAndFinancingItemsAbstract_42916343-9c1c-4867-a79a-c1afe976604c" xlink:to="loc_lcid_RightOfUseAssetObtainedInExchangeForLeaseLiability_7fd4f01e-42ae-4f2f-b2c8-96d4397473f9" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://lucidmotors.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWSParenthetical" xlink:type="simple" xlink:href="lcid-20240630.xsd#CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWSParenthetical"/>
  <link:definitionLink xlink:role="http://lucidmotors.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWSParenthetical" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_f66241cd-8dca-4ec2-869f-db37d386d149" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_63350316-d9da-4069-8caa-b1b1775bf1d6" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_f66241cd-8dca-4ec2-869f-db37d386d149" xlink:to="loc_us-gaap_StatementTable_63350316-d9da-4069-8caa-b1b1775bf1d6" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_9a2ffbe8-e62b-4350-b391-e56de07d9c04" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_63350316-d9da-4069-8caa-b1b1775bf1d6" xlink:to="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_9a2ffbe8-e62b-4350-b391-e56de07d9c04" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_9a2ffbe8-e62b-4350-b391-e56de07d9c04_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_9a2ffbe8-e62b-4350-b391-e56de07d9c04" xlink:to="loc_us-gaap_RelatedPartyDomain_9a2ffbe8-e62b-4350-b391-e56de07d9c04_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_781691cf-fd4b-4b2d-ad80-cef135b5e3ca" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_9a2ffbe8-e62b-4350-b391-e56de07d9c04" xlink:to="loc_us-gaap_RelatedPartyDomain_781691cf-fd4b-4b2d-ad80-cef135b5e3ca" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyMember_a6a7cc47-9c86-4e4a-a564-1023e60879ce" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain_781691cf-fd4b-4b2d-ad80-cef135b5e3ca" xlink:to="loc_us-gaap_RelatedPartyMember_a6a7cc47-9c86-4e4a-a564-1023e60879ce" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_b0a35bd9-9b0e-4fc6-adc3-0d63ef83bc81" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncreaseDecreaseInAccountsReceivable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_f66241cd-8dca-4ec2-869f-db37d386d149" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_b0a35bd9-9b0e-4fc6-adc3-0d63ef83bc81" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_ab970c0c-939a-47df-87d0-f3f340c3bef3" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_f66241cd-8dca-4ec2-869f-db37d386d149" xlink:to="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_ab970c0c-939a-47df-87d0-f3f340c3bef3" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://lucidmotors.com/role/DESCRIPTIONOFBUSINESSDetails" xlink:type="simple" xlink:href="lcid-20240630.xsd#DESCRIPTIONOFBUSINESSDetails"/>
  <link:definitionLink xlink:role="http://lucidmotors.com/role/DESCRIPTIONOFBUSINESSDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_891dc729-3628-4092-82a4-0c7d8e33ccfe" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable_7d9905c5-ea18-49dc-9e34-9c046852996e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DebtInstrumentLineItems_891dc729-3628-4092-82a4-0c7d8e33ccfe" xlink:to="loc_us-gaap_DebtInstrumentTable_7d9905c5-ea18-49dc-9e34-9c046852996e" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_766cab63-4be3-40ec-9e92-3ceff32cfbd1" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_7d9905c5-ea18-49dc-9e34-9c046852996e" xlink:to="loc_us-gaap_DebtInstrumentAxis_766cab63-4be3-40ec-9e92-3ceff32cfbd1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_766cab63-4be3-40ec-9e92-3ceff32cfbd1_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_766cab63-4be3-40ec-9e92-3ceff32cfbd1" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_766cab63-4be3-40ec-9e92-3ceff32cfbd1_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_2d125543-e8f1-4f63-b7d9-a118cc889d5a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_766cab63-4be3-40ec-9e92-3ceff32cfbd1" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_2d125543-e8f1-4f63-b7d9-a118cc889d5a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_SaudiIndustrialDevelopmentFundLoanAgreementMember_da2d3d2e-620f-40be-888f-45a0115ea9ae" xlink:href="lcid-20240630.xsd#lcid_SaudiIndustrialDevelopmentFundLoanAgreementMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_2d125543-e8f1-4f63-b7d9-a118cc889d5a" xlink:to="loc_lcid_SaudiIndustrialDevelopmentFundLoanAgreementMember_da2d3d2e-620f-40be-888f-45a0115ea9ae" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_ABLCreditFacilityMember_af45ac2c-cd44-4b22-b2ff-35c144b5fd34" xlink:href="lcid-20240630.xsd#lcid_ABLCreditFacilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_2d125543-e8f1-4f63-b7d9-a118cc889d5a" xlink:to="loc_lcid_ABLCreditFacilityMember_af45ac2c-cd44-4b22-b2ff-35c144b5fd34" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_GIBFacilityAgreementMember_419dc33a-e0f3-4b34-a490-4af9e3417046" xlink:href="lcid-20240630.xsd#lcid_GIBFacilityAgreementMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_2d125543-e8f1-4f63-b7d9-a118cc889d5a" xlink:to="loc_lcid_GIBFacilityAgreementMember_419dc33a-e0f3-4b34-a490-4af9e3417046" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_DelayedDrawTermLoanCreditFacilityMember_243578af-939c-4a8e-b116-78edc96090d6" xlink:href="lcid-20240630.xsd#lcid_DelayedDrawTermLoanCreditFacilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_2d125543-e8f1-4f63-b7d9-a118cc889d5a" xlink:to="loc_lcid_DelayedDrawTermLoanCreditFacilityMember_243578af-939c-4a8e-b116-78edc96090d6" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_1784ad29-9ea6-4b37-818e-ebb9488d202c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_7d9905c5-ea18-49dc-9e34-9c046852996e" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_1784ad29-9ea6-4b37-818e-ebb9488d202c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_1784ad29-9ea6-4b37-818e-ebb9488d202c_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_1784ad29-9ea6-4b37-818e-ebb9488d202c" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_1784ad29-9ea6-4b37-818e-ebb9488d202c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_1cf183b6-b454-4410-bee6-4e60801df9e4" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_1784ad29-9ea6-4b37-818e-ebb9488d202c" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_1cf183b6-b454-4410-bee6-4e60801df9e4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditMember_9034085c-e559-4814-8d5a-6e97af44dc89" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LineOfCreditMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_1cf183b6-b454-4410-bee6-4e60801df9e4" xlink:to="loc_us-gaap_LineOfCreditMember_9034085c-e559-4814-8d5a-6e97af44dc89" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DelayedDrawTermLoanMember_34c6d0f9-49e3-43fe-974f-91891066c50b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DelayedDrawTermLoanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_1cf183b6-b454-4410-bee6-4e60801df9e4" xlink:to="loc_us-gaap_DelayedDrawTermLoanMember_34c6d0f9-49e3-43fe-974f-91891066c50b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityAxis_f3bc74b2-6784-4531-82e1-360f4ba1ffe3" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CreditFacilityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_7d9905c5-ea18-49dc-9e34-9c046852996e" xlink:to="loc_us-gaap_CreditFacilityAxis_f3bc74b2-6784-4531-82e1-360f4ba1ffe3" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_f3bc74b2-6784-4531-82e1-360f4ba1ffe3_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_CreditFacilityAxis_f3bc74b2-6784-4531-82e1-360f4ba1ffe3" xlink:to="loc_us-gaap_CreditFacilityDomain_f3bc74b2-6784-4531-82e1-360f4ba1ffe3_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_172c1ef3-6d1c-46f7-b5d0-0ef5e43913ed" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_CreditFacilityAxis_f3bc74b2-6784-4531-82e1-360f4ba1ffe3" xlink:to="loc_us-gaap_CreditFacilityDomain_172c1ef3-6d1c-46f7-b5d0-0ef5e43913ed" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevolvingCreditFacilityMember_4b7d8220-378b-4309-86c1-557365b2a6ae" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RevolvingCreditFacilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_172c1ef3-6d1c-46f7-b5d0-0ef5e43913ed" xlink:to="loc_us-gaap_RevolvingCreditFacilityMember_4b7d8220-378b-4309-86c1-557365b2a6ae" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BridgeLoanMember_3a8c999e-020a-4935-a7d9-44f5af9d2481" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BridgeLoanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_172c1ef3-6d1c-46f7-b5d0-0ef5e43913ed" xlink:to="loc_us-gaap_BridgeLoanMember_3a8c999e-020a-4935-a7d9-44f5af9d2481" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_WorkingCapitalFacilityMember_0b885779-2d6c-4861-bb2f-6e688d261517" xlink:href="lcid-20240630.xsd#lcid_WorkingCapitalFacilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_172c1ef3-6d1c-46f7-b5d0-0ef5e43913ed" xlink:to="loc_lcid_WorkingCapitalFacilityMember_0b885779-2d6c-4861-bb2f-6e688d261517" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuredDebtMember_caebe0b8-3649-415d-b2b1-b66e51124a87" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SecuredDebtMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_172c1ef3-6d1c-46f7-b5d0-0ef5e43913ed" xlink:to="loc_us-gaap_SecuredDebtMember_caebe0b8-3649-415d-b2b1-b66e51124a87" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsidiarySaleOfStockAxis_fdb6540c-fbf7-4150-b17a-b64d8d523f24" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsidiarySaleOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_7d9905c5-ea18-49dc-9e34-9c046852996e" xlink:to="loc_us-gaap_SubsidiarySaleOfStockAxis_fdb6540c-fbf7-4150-b17a-b64d8d523f24" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNameOfTransactionDomain_fdb6540c-fbf7-4150-b17a-b64d8d523f24_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SaleOfStockNameOfTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsidiarySaleOfStockAxis_fdb6540c-fbf7-4150-b17a-b64d8d523f24" xlink:to="loc_us-gaap_SaleOfStockNameOfTransactionDomain_fdb6540c-fbf7-4150-b17a-b64d8d523f24_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNameOfTransactionDomain_b437a43f-83f1-47db-aab8-dd2f9c4542b3" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SaleOfStockNameOfTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsidiarySaleOfStockAxis_fdb6540c-fbf7-4150-b17a-b64d8d523f24" xlink:to="loc_us-gaap_SaleOfStockNameOfTransactionDomain_b437a43f-83f1-47db-aab8-dd2f9c4542b3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_AtTheMarketOfferingMember_51a55560-5769-4875-9dc6-1478418f1c9c" xlink:href="lcid-20240630.xsd#lcid_AtTheMarketOfferingMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SaleOfStockNameOfTransactionDomain_b437a43f-83f1-47db-aab8-dd2f9c4542b3" xlink:to="loc_lcid_AtTheMarketOfferingMember_51a55560-5769-4875-9dc6-1478418f1c9c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_A2022SubscriptionAgreementMember_4905916d-0ce1-48ae-85e7-dbd26c4a0daf" xlink:href="lcid-20240630.xsd#lcid_A2022SubscriptionAgreementMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SaleOfStockNameOfTransactionDomain_b437a43f-83f1-47db-aab8-dd2f9c4542b3" xlink:to="loc_lcid_A2022SubscriptionAgreementMember_4905916d-0ce1-48ae-85e7-dbd26c4a0daf" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OverAllotmentOptionMember_b0f94d67-a70a-40a5-81c1-4e30e5967796" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OverAllotmentOptionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SaleOfStockNameOfTransactionDomain_b437a43f-83f1-47db-aab8-dd2f9c4542b3" xlink:to="loc_us-gaap_OverAllotmentOptionMember_b0f94d67-a70a-40a5-81c1-4e30e5967796" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_A2023SubscriptionAgreementMember_79e90edd-e1ab-4792-ba10-98a4079b12c2" xlink:href="lcid-20240630.xsd#lcid_A2023SubscriptionAgreementMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SaleOfStockNameOfTransactionDomain_b437a43f-83f1-47db-aab8-dd2f9c4542b3" xlink:to="loc_lcid_A2023SubscriptionAgreementMember_79e90edd-e1ab-4792-ba10-98a4079b12c2" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_SeriesASubscriptionAgreementMember_523489dc-7a62-4671-9350-18ab46a57416" xlink:href="lcid-20240630.xsd#lcid_SeriesASubscriptionAgreementMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SaleOfStockNameOfTransactionDomain_b437a43f-83f1-47db-aab8-dd2f9c4542b3" xlink:to="loc_lcid_SeriesASubscriptionAgreementMember_523489dc-7a62-4671-9350-18ab46a57416" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CounterpartyNameAxis_53cd5730-d3ac-4a0b-a49c-aba6f9128a4e" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_CounterpartyNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_7d9905c5-ea18-49dc-9e34-9c046852996e" xlink:to="loc_srt_CounterpartyNameAxis_53cd5730-d3ac-4a0b-a49c-aba6f9128a4e" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_53cd5730-d3ac-4a0b-a49c-aba6f9128a4e_default" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_CounterpartyNameAxis_53cd5730-d3ac-4a0b-a49c-aba6f9128a4e" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_53cd5730-d3ac-4a0b-a49c-aba6f9128a4e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_64fd284c-5728-4158-a771-848c138589a2" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_CounterpartyNameAxis_53cd5730-d3ac-4a0b-a49c-aba6f9128a4e" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_64fd284c-5728-4158-a771-848c138589a2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_AyarThirdInvestmentCompanyMember_b1f9d615-705d-4c53-a175-084e47f8e02c" xlink:href="lcid-20240630.xsd#lcid_AyarThirdInvestmentCompanyMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RepurchaseAgreementCounterpartyNameDomain_64fd284c-5728-4158-a771-848c138589a2" xlink:to="loc_lcid_AyarThirdInvestmentCompanyMember_b1f9d615-705d-4c53-a175-084e47f8e02c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_da45c4b5-0399-4f87-9c31-c61f7177db17" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_7d9905c5-ea18-49dc-9e34-9c046852996e" xlink:to="loc_us-gaap_StatementClassOfStockAxis_da45c4b5-0399-4f87-9c31-c61f7177db17" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_da45c4b5-0399-4f87-9c31-c61f7177db17_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_da45c4b5-0399-4f87-9c31-c61f7177db17" xlink:to="loc_us-gaap_ClassOfStockDomain_da45c4b5-0399-4f87-9c31-c61f7177db17_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_ace1cb5e-f82b-4322-8170-134a70b38f98" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_da45c4b5-0399-4f87-9c31-c61f7177db17" xlink:to="loc_us-gaap_ClassOfStockDomain_ace1cb5e-f82b-4322-8170-134a70b38f98" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RedeemableConvertiblePreferredStockMember_252f8c9f-661a-4cd2-b182-40c0e839ef02" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RedeemableConvertiblePreferredStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_ace1cb5e-f82b-4322-8170-134a70b38f98" xlink:to="loc_us-gaap_RedeemableConvertiblePreferredStockMember_252f8c9f-661a-4cd2-b182-40c0e839ef02" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_01901bf6-cf2e-4c7a-8c31-dc0b01773988" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsequentEventTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_7d9905c5-ea18-49dc-9e34-9c046852996e" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_01901bf6-cf2e-4c7a-8c31-dc0b01773988" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_01901bf6-cf2e-4c7a-8c31-dc0b01773988_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_01901bf6-cf2e-4c7a-8c31-dc0b01773988" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_01901bf6-cf2e-4c7a-8c31-dc0b01773988_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_971ef45c-3fc4-4f0b-94f8-6d9d0e1f8c8a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_01901bf6-cf2e-4c7a-8c31-dc0b01773988" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_971ef45c-3fc4-4f0b-94f8-6d9d0e1f8c8a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventMember_eef28f2e-fabb-4934-ad6f-139f46a06e38" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsequentEventMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventTypeDomain_971ef45c-3fc4-4f0b-94f8-6d9d0e1f8c8a" xlink:to="loc_us-gaap_SubsequentEventMember_eef28f2e-fabb-4934-ad6f-139f46a06e38" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_6bc35247-5a41-4ba1-90eb-251c675c2b92" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NetIncomeLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_891dc729-3628-4092-82a4-0c7d8e33ccfe" xlink:to="loc_us-gaap_NetIncomeLoss_6bc35247-5a41-4ba1-90eb-251c675c2b92" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_86c3c5e2-d9a1-4e2c-bf57-9dbc61d2b6e0" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RetainedEarningsAccumulatedDeficit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_891dc729-3628-4092-82a4-0c7d8e33ccfe" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_86c3c5e2-d9a1-4e2c-bf57-9dbc61d2b6e0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentFaceAmount_12d73fc9-437a-439e-b555-9d3dd0b062f7" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentFaceAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_891dc729-3628-4092-82a4-0c7d8e33ccfe" xlink:to="loc_us-gaap_DebtInstrumentFaceAmount_12d73fc9-437a-439e-b555-9d3dd0b062f7" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTerm_bfc7bab9-3d4a-4509-9e0b-8c6ff89264aa" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentTerm"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_891dc729-3628-4092-82a4-0c7d8e33ccfe" xlink:to="loc_us-gaap_DebtInstrumentTerm_bfc7bab9-3d4a-4509-9e0b-8c6ff89264aa" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_637bb09f-a94d-4cc7-94c3-8fad68b616bf" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_891dc729-3628-4092-82a4-0c7d8e33ccfe" xlink:to="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_637bb09f-a94d-4cc7-94c3-8fad68b616bf" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_LineOfCreditFacilityNumberOfFacilities_5a62d91d-5b60-4e80-b6ae-152fc662ea06" xlink:href="lcid-20240630.xsd#lcid_LineOfCreditFacilityNumberOfFacilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_891dc729-3628-4092-82a4-0c7d8e33ccfe" xlink:to="loc_lcid_LineOfCreditFacilityNumberOfFacilities_5a62d91d-5b60-4e80-b6ae-152fc662ea06" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_e6b322aa-20ea-44a5-b0bf-a1954c9473a4" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentBasisSpreadOnVariableRate1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_891dc729-3628-4092-82a4-0c7d8e33ccfe" xlink:to="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_e6b322aa-20ea-44a5-b0bf-a1954c9473a4" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_SaleOfStockConsiderationToReceiveOnTransaction_2a95a797-c040-45ee-a255-196866562279" xlink:href="lcid-20240630.xsd#lcid_SaleOfStockConsiderationToReceiveOnTransaction"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_891dc729-3628-4092-82a4-0c7d8e33ccfe" xlink:to="loc_lcid_SaleOfStockConsiderationToReceiveOnTransaction_2a95a797-c040-45ee-a255-196866562279" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockConsiderationReceivedOnTransaction_0d51340b-a1fe-4217-a85f-c863688bfbc4" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SaleOfStockConsiderationReceivedOnTransaction"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_891dc729-3628-4092-82a4-0c7d8e33ccfe" xlink:to="loc_us-gaap_SaleOfStockConsiderationReceivedOnTransaction_0d51340b-a1fe-4217-a85f-c863688bfbc4" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_SaleOfStockRemainingNumberOfSharesAvailable_1980cfde-d60d-4aad-8fb8-8d825a32d89f" xlink:href="lcid-20240630.xsd#lcid_SaleOfStockRemainingNumberOfSharesAvailable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_891dc729-3628-4092-82a4-0c7d8e33ccfe" xlink:to="loc_lcid_SaleOfStockRemainingNumberOfSharesAvailable_1980cfde-d60d-4aad-8fb8-8d825a32d89f" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_6aa6ccc4-91cd-45c7-a55b-6c9feadf43b3" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_891dc729-3628-4092-82a4-0c7d8e33ccfe" xlink:to="loc_us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_6aa6ccc4-91cd-45c7-a55b-6c9feadf43b3" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TemporaryEquityParOrStatedValuePerShare_428270f8-b5a3-4b44-a87c-c0594691c586" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_TemporaryEquityParOrStatedValuePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_891dc729-3628-4092-82a4-0c7d8e33ccfe" xlink:to="loc_us-gaap_TemporaryEquityParOrStatedValuePerShare_428270f8-b5a3-4b44-a87c-c0594691c586" xlink:type="arc" order="11"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://lucidmotors.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESNarrativeDetails" xlink:type="simple" xlink:href="lcid-20240630.xsd#SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESNarrativeDetails"/>
  <link:definitionLink xlink:role="http://lucidmotors.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EntityWideRevenueMajorCustomerLineItems_851251b9-bcb6-4c89-a1f4-05c7244b17df" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EntityWideRevenueMajorCustomerLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable_9228f234-cfa5-44b2-80b0-8bea4a3c6e95" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_EntityWideRevenueMajorCustomerLineItems_851251b9-bcb6-4c89-a1f4-05c7244b17df" xlink:to="loc_us-gaap_ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable_9228f234-cfa5-44b2-80b0-8bea4a3c6e95" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductOrServiceAxis_957f93f5-9e9c-4580-b16b-9fe4d125c841" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_ProductOrServiceAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable_9228f234-cfa5-44b2-80b0-8bea4a3c6e95" xlink:to="loc_srt_ProductOrServiceAxis_957f93f5-9e9c-4580-b16b-9fe4d125c841" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_957f93f5-9e9c-4580-b16b-9fe4d125c841_default" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ProductOrServiceAxis_957f93f5-9e9c-4580-b16b-9fe4d125c841" xlink:to="loc_srt_ProductsAndServicesDomain_957f93f5-9e9c-4580-b16b-9fe4d125c841_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_9c1b84e7-646e-4292-bf5e-df513ce1afbd" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ProductOrServiceAxis_957f93f5-9e9c-4580-b16b-9fe4d125c841" xlink:to="loc_srt_ProductsAndServicesDomain_9c1b84e7-646e-4292-bf5e-df513ce1afbd" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_ElectricVehiclePurchaseAgreementMember_39bc7e20-58b8-4cef-a9dd-866735cb5033" xlink:href="lcid-20240630.xsd#lcid_ElectricVehiclePurchaseAgreementMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_9c1b84e7-646e-4292-bf5e-df513ce1afbd" xlink:to="loc_lcid_ElectricVehiclePurchaseAgreementMember_39bc7e20-58b8-4cef-a9dd-866735cb5033" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_VehicleSalesWithRVGMember_3cacdace-7a32-4e01-aaea-c37869796e8c" xlink:href="lcid-20240630.xsd#lcid_VehicleSalesWithRVGMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_9c1b84e7-646e-4292-bf5e-df513ce1afbd" xlink:to="loc_lcid_VehicleSalesWithRVGMember_3cacdace-7a32-4e01-aaea-c37869796e8c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_VehicleSalesWithOTAAndRemarketingMember_b38b7ff7-bfa3-41ca-a0b9-636d3509cb2a" xlink:href="lcid-20240630.xsd#lcid_VehicleSalesWithOTAAndRemarketingMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_9c1b84e7-646e-4292-bf5e-df513ce1afbd" xlink:to="loc_lcid_VehicleSalesWithOTAAndRemarketingMember_b38b7ff7-bfa3-41ca-a0b9-636d3509cb2a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BalanceSheetLocationAxis_b8154dce-4098-4a53-827b-169aaea4f1fd" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BalanceSheetLocationAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable_9228f234-cfa5-44b2-80b0-8bea4a3c6e95" xlink:to="loc_us-gaap_BalanceSheetLocationAxis_b8154dce-4098-4a53-827b-169aaea4f1fd" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BalanceSheetLocationDomain_b8154dce-4098-4a53-827b-169aaea4f1fd_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BalanceSheetLocationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BalanceSheetLocationAxis_b8154dce-4098-4a53-827b-169aaea4f1fd" xlink:to="loc_us-gaap_BalanceSheetLocationDomain_b8154dce-4098-4a53-827b-169aaea4f1fd_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BalanceSheetLocationDomain_0fb790b7-0acb-4390-aae1-a441c5aa6257" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BalanceSheetLocationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BalanceSheetLocationAxis_b8154dce-4098-4a53-827b-169aaea4f1fd" xlink:to="loc_us-gaap_BalanceSheetLocationDomain_0fb790b7-0acb-4390-aae1-a441c5aa6257" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherCurrentLiabilitiesMember_bc2ed495-230e-4506-a8c2-bb2a982ecaec" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherCurrentLiabilitiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_0fb790b7-0acb-4390-aae1-a441c5aa6257" xlink:to="loc_us-gaap_OtherCurrentLiabilitiesMember_bc2ed495-230e-4506-a8c2-bb2a982ecaec" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNoncurrentLiabilitiesMember_2900c5c0-b2ba-40f5-888b-9f556d60d1e1" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherNoncurrentLiabilitiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_0fb790b7-0acb-4390-aae1-a441c5aa6257" xlink:to="loc_us-gaap_OtherNoncurrentLiabilitiesMember_2900c5c0-b2ba-40f5-888b-9f556d60d1e1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByTypeAxis_dd841108-c3ed-47c3-9087-974174698479" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ConcentrationRiskByTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable_9228f234-cfa5-44b2-80b0-8bea4a3c6e95" xlink:to="loc_us-gaap_ConcentrationRiskByTypeAxis_dd841108-c3ed-47c3-9087-974174698479" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain_dd841108-c3ed-47c3-9087-974174698479_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ConcentrationRiskTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis_dd841108-c3ed-47c3-9087-974174698479" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_dd841108-c3ed-47c3-9087-974174698479_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain_dcd725c1-354e-44e7-8588-2566e7bdb04b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ConcentrationRiskTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis_dd841108-c3ed-47c3-9087-974174698479" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_dcd725c1-354e-44e7-8588-2566e7bdb04b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CustomerConcentrationRiskMember_7a43a09c-bb23-4bd4-a89e-7586ddb262b2" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CustomerConcentrationRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskTypeDomain_dcd725c1-354e-44e7-8588-2566e7bdb04b" xlink:to="loc_us-gaap_CustomerConcentrationRiskMember_7a43a09c-bb23-4bd4-a89e-7586ddb262b2" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_855e20ff-0ee1-44de-813c-80cad1e0e6f8" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ConcentrationRiskByBenchmarkAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable_9228f234-cfa5-44b2-80b0-8bea4a3c6e95" xlink:to="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_855e20ff-0ee1-44de-813c-80cad1e0e6f8" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskBenchmarkDomain_855e20ff-0ee1-44de-813c-80cad1e0e6f8_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ConcentrationRiskBenchmarkDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_855e20ff-0ee1-44de-813c-80cad1e0e6f8" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain_855e20ff-0ee1-44de-813c-80cad1e0e6f8_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskBenchmarkDomain_55cf1377-1d69-4dba-a410-e4d2a7a05503" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ConcentrationRiskBenchmarkDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_855e20ff-0ee1-44de-813c-80cad1e0e6f8" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain_55cf1377-1d69-4dba-a410-e4d2a7a05503" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableMember_dd319b29-a543-42e6-8e18-b0cfaf9cae70" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccountsReceivableMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskBenchmarkDomain_55cf1377-1d69-4dba-a410-e4d2a7a05503" xlink:to="loc_us-gaap_AccountsReceivableMember_dd319b29-a543-42e6-8e18-b0cfaf9cae70" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MajorCustomersAxis_68eb6e1a-1dd9-469a-a143-40a6696eb3fa" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_MajorCustomersAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEntityWideRevenueByMajorCustomersByReportingSegmentsTable_9228f234-cfa5-44b2-80b0-8bea4a3c6e95" xlink:to="loc_srt_MajorCustomersAxis_68eb6e1a-1dd9-469a-a143-40a6696eb3fa" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_NameOfMajorCustomerDomain_68eb6e1a-1dd9-469a-a143-40a6696eb3fa_default" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_NameOfMajorCustomerDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_MajorCustomersAxis_68eb6e1a-1dd9-469a-a143-40a6696eb3fa" xlink:to="loc_srt_NameOfMajorCustomerDomain_68eb6e1a-1dd9-469a-a143-40a6696eb3fa_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_NameOfMajorCustomerDomain_470b00b9-8470-457a-a105-99106a5f4e01" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_NameOfMajorCustomerDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_MajorCustomersAxis_68eb6e1a-1dd9-469a-a143-40a6696eb3fa" xlink:to="loc_srt_NameOfMajorCustomerDomain_470b00b9-8470-457a-a105-99106a5f4e01" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_GovernmentOfSaudiArabiaMember_dff331d2-10ff-4842-bacc-195a6ae2e048" xlink:href="lcid-20240630.xsd#lcid_GovernmentOfSaudiArabiaMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_NameOfMajorCustomerDomain_470b00b9-8470-457a-a105-99106a5f4e01" xlink:to="loc_lcid_GovernmentOfSaudiArabiaMember_dff331d2-10ff-4842-bacc-195a6ae2e048" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskPercentage1_146a07dc-61f5-4444-89a9-327d4718a52e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ConcentrationRiskPercentage1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EntityWideRevenueMajorCustomerLineItems_851251b9-bcb6-4c89-a1f4-05c7244b17df" xlink:to="loc_us-gaap_ConcentrationRiskPercentage1_146a07dc-61f5-4444-89a9-327d4718a52e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_NumberOfPerformanceObligations_e1ce06e9-9e13-4ff3-a6ce-7fc32612ae57" xlink:href="lcid-20240630.xsd#lcid_NumberOfPerformanceObligations"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EntityWideRevenueMajorCustomerLineItems_851251b9-bcb6-4c89-a1f4-05c7244b17df" xlink:to="loc_lcid_NumberOfPerformanceObligations_e1ce06e9-9e13-4ff3-a6ce-7fc32612ae57" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_BasicVehicleWarrantyTerm_8e2047c9-d587-4914-ae08-9472e6d84cbe" xlink:href="lcid-20240630.xsd#lcid_BasicVehicleWarrantyTerm"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EntityWideRevenueMajorCustomerLineItems_851251b9-bcb6-4c89-a1f4-05c7244b17df" xlink:to="loc_lcid_BasicVehicleWarrantyTerm_8e2047c9-d587-4914-ae08-9472e6d84cbe" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Revenues_7696c206-af5b-42ed-8836-4eb28a27244d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_Revenues"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EntityWideRevenueMajorCustomerLineItems_851251b9-bcb6-4c89-a1f4-05c7244b17df" xlink:to="loc_us-gaap_Revenues_7696c206-af5b-42ed-8836-4eb28a27244d" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiability_1a68ee7f-ce14-4483-bbaf-82e0062075f3" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ContractWithCustomerLiability"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EntityWideRevenueMajorCustomerLineItems_851251b9-bcb6-4c89-a1f4-05c7244b17df" xlink:to="loc_us-gaap_ContractWithCustomerLiability_1a68ee7f-ce14-4483-bbaf-82e0062075f3" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://lucidmotors.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESScheduleofDisaggregationofRevenueDetails" xlink:type="simple" xlink:href="lcid-20240630.xsd#SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESScheduleofDisaggregationofRevenueDetails"/>
  <link:definitionLink xlink:role="http://lucidmotors.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESScheduleofDisaggregationofRevenueDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EntityWideRevenueMajorCustomerLineItems_016546a1-3227-4b09-803a-847651ac87d5" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EntityWideRevenueMajorCustomerLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueTable_f59c8e18-8176-407f-b1aa-2b971c8ae5e2" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DisaggregationOfRevenueTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_EntityWideRevenueMajorCustomerLineItems_016546a1-3227-4b09-803a-847651ac87d5" xlink:to="loc_us-gaap_DisaggregationOfRevenueTable_f59c8e18-8176-407f-b1aa-2b971c8ae5e2" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StatementGeographicalAxis_f123e5ef-9c4e-4a4e-bfdf-7da5966a8282" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_StatementGeographicalAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_f59c8e18-8176-407f-b1aa-2b971c8ae5e2" xlink:to="loc_srt_StatementGeographicalAxis_f123e5ef-9c4e-4a4e-bfdf-7da5966a8282" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_f123e5ef-9c4e-4a4e-bfdf-7da5966a8282_default" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_StatementGeographicalAxis_f123e5ef-9c4e-4a4e-bfdf-7da5966a8282" xlink:to="loc_srt_SegmentGeographicalDomain_f123e5ef-9c4e-4a4e-bfdf-7da5966a8282_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_ef51a3d5-4e3d-4bd1-9efb-d39c1aad1d4a" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_StatementGeographicalAxis_f123e5ef-9c4e-4a4e-bfdf-7da5966a8282" xlink:to="loc_srt_SegmentGeographicalDomain_ef51a3d5-4e3d-4bd1-9efb-d39c1aad1d4a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_NorthAmericaMember_1f8a3675-1a87-486b-b711-df9b3024b760" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_NorthAmericaMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_ef51a3d5-4e3d-4bd1-9efb-d39c1aad1d4a" xlink:to="loc_srt_NorthAmericaMember_1f8a3675-1a87-486b-b711-df9b3024b760" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MiddleEastMember_db83d04a-4573-43db-985e-6c1528692c3c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_MiddleEastMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_ef51a3d5-4e3d-4bd1-9efb-d39c1aad1d4a" xlink:to="loc_us-gaap_MiddleEastMember_db83d04a-4573-43db-985e-6c1528692c3c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_OtherInternationalMember_a1aa359b-fd26-4ff8-a71b-4a74a3b9758c" xlink:href="lcid-20240630.xsd#lcid_OtherInternationalMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_ef51a3d5-4e3d-4bd1-9efb-d39c1aad1d4a" xlink:to="loc_lcid_OtherInternationalMember_a1aa359b-fd26-4ff8-a71b-4a74a3b9758c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Revenues_2db22a8a-0974-499d-9535-f11e8f77ee1b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_Revenues"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EntityWideRevenueMajorCustomerLineItems_016546a1-3227-4b09-803a-847651ac87d5" xlink:to="loc_us-gaap_Revenues_2db22a8a-0974-499d-9535-f11e8f77ee1b" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://lucidmotors.com/role/RESTRUCTURINGNarrativeDetails" xlink:type="simple" xlink:href="lcid-20240630.xsd#RESTRUCTURINGNarrativeDetails"/>
  <link:definitionLink xlink:role="http://lucidmotors.com/role/RESTRUCTURINGNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCostAndReserveLineItems_93d9c8c0-ad57-4571-92bc-4de85e959009" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RestructuringCostAndReserveLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_3aba3941-5858-45d8-aa3c-d3e48d0de1ec" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfRestructuringAndRelatedCostsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_93d9c8c0-ad57-4571-92bc-4de85e959009" xlink:to="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_3aba3941-5858-45d8-aa3c-d3e48d0de1ec" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_fac44ed3-bb50-48cf-a9ed-794d2d25a345" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_3aba3941-5858-45d8-aa3c-d3e48d0de1ec" xlink:to="loc_srt_RangeAxis_fac44ed3-bb50-48cf-a9ed-794d2d25a345" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_fac44ed3-bb50-48cf-a9ed-794d2d25a345_default" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_fac44ed3-bb50-48cf-a9ed-794d2d25a345" xlink:to="loc_srt_RangeMember_fac44ed3-bb50-48cf-a9ed-794d2d25a345_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_93e5bee6-9342-477c-a3f8-275957fca396" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_fac44ed3-bb50-48cf-a9ed-794d2d25a345" xlink:to="loc_srt_RangeMember_93e5bee6-9342-477c-a3f8-275957fca396" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_e7681959-3bed-4354-8045-e6d2e15291c6" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_93e5bee6-9342-477c-a3f8-275957fca396" xlink:to="loc_srt_MinimumMember_e7681959-3bed-4354-8045-e6d2e15291c6" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_1c21b3d2-ef20-4241-9db8-82954d898b1b" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_93e5bee6-9342-477c-a3f8-275957fca396" xlink:to="loc_srt_MaximumMember_1c21b3d2-ef20-4241-9db8-82954d898b1b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringPlanAxis_7630bbcc-f55e-4557-8691-d9dc1c4091b7" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RestructuringPlanAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_3aba3941-5858-45d8-aa3c-d3e48d0de1ec" xlink:to="loc_us-gaap_RestructuringPlanAxis_7630bbcc-f55e-4557-8691-d9dc1c4091b7" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringPlanDomain_7630bbcc-f55e-4557-8691-d9dc1c4091b7_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RestructuringPlanDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RestructuringPlanAxis_7630bbcc-f55e-4557-8691-d9dc1c4091b7" xlink:to="loc_us-gaap_RestructuringPlanDomain_7630bbcc-f55e-4557-8691-d9dc1c4091b7_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringPlanDomain_f223e9e6-8e6f-4b31-80d0-afd029c8a31f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RestructuringPlanDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RestructuringPlanAxis_7630bbcc-f55e-4557-8691-d9dc1c4091b7" xlink:to="loc_us-gaap_RestructuringPlanDomain_f223e9e6-8e6f-4b31-80d0-afd029c8a31f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_A2024RestructuringPlanMember_0db4993d-0417-44b0-8516-549a47a01b44" xlink:href="lcid-20240630.xsd#lcid_A2024RestructuringPlanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringPlanDomain_f223e9e6-8e6f-4b31-80d0-afd029c8a31f" xlink:to="loc_lcid_A2024RestructuringPlanMember_0db4993d-0417-44b0-8516-549a47a01b44" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_A2023RestructuringPlanMember_134eb853-8d45-423b-85e0-3b93a1baa6b7" xlink:href="lcid-20240630.xsd#lcid_A2023RestructuringPlanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringPlanDomain_f223e9e6-8e6f-4b31-80d0-afd029c8a31f" xlink:to="loc_lcid_A2023RestructuringPlanMember_134eb853-8d45-423b-85e0-3b93a1baa6b7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringAndRelatedCostExpectedCost1_fb6b643f-4e28-428c-b679-375d8a32a815" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RestructuringAndRelatedCostExpectedCost1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_93d9c8c0-ad57-4571-92bc-4de85e959009" xlink:to="loc_us-gaap_RestructuringAndRelatedCostExpectedCost1_fb6b643f-4e28-428c-b679-375d8a32a815" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCharges_fef9750c-8fc5-4df1-b1a5-2ed20653d7e4" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RestructuringCharges"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_93d9c8c0-ad57-4571-92bc-4de85e959009" xlink:to="loc_us-gaap_RestructuringCharges_fef9750c-8fc5-4df1-b1a5-2ed20653d7e4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringReserve_ca6da5e5-18a2-40c2-848b-96d59e2e00af" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RestructuringReserve"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_93d9c8c0-ad57-4571-92bc-4de85e959009" xlink:to="loc_us-gaap_RestructuringReserve_ca6da5e5-18a2-40c2-848b-96d59e2e00af" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://lucidmotors.com/role/RESTRUCTURINGScheduleofRestructuringLiabilitiesDetails" xlink:type="simple" xlink:href="lcid-20240630.xsd#RESTRUCTURINGScheduleofRestructuringLiabilitiesDetails"/>
  <link:definitionLink xlink:role="http://lucidmotors.com/role/RESTRUCTURINGScheduleofRestructuringLiabilitiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_1236ddaf-50ed-4ed1-88b9-64fde579464c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_aa09c795-61b5-44a7-9d24-30aeef69058c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_1236ddaf-50ed-4ed1-88b9-64fde579464c" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_aa09c795-61b5-44a7-9d24-30aeef69058c" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_5d555f05-59ca-4693-8466-5bf9b04e0da3" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_aa09c795-61b5-44a7-9d24-30aeef69058c" xlink:to="loc_us-gaap_AwardTypeAxis_5d555f05-59ca-4693-8466-5bf9b04e0da3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_5d555f05-59ca-4693-8466-5bf9b04e0da3_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_5d555f05-59ca-4693-8466-5bf9b04e0da3" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_5d555f05-59ca-4693-8466-5bf9b04e0da3_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_0e4f1ce6-815e-4b82-9cfe-760d939d04e8" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_5d555f05-59ca-4693-8466-5bf9b04e0da3" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_0e4f1ce6-815e-4b82-9cfe-760d939d04e8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_UnvestedRestrictedStockAwardMember_c8a9298e-e704-4eff-8665-d2cd33174779" xlink:href="lcid-20240630.xsd#lcid_UnvestedRestrictedStockAwardMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_0e4f1ce6-815e-4b82-9cfe-760d939d04e8" xlink:to="loc_lcid_UnvestedRestrictedStockAwardMember_c8a9298e-e704-4eff-8665-d2cd33174779" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringPlanAxis_08322df8-9ae2-4c79-bc16-5d286d3413f8" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RestructuringPlanAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_aa09c795-61b5-44a7-9d24-30aeef69058c" xlink:to="loc_us-gaap_RestructuringPlanAxis_08322df8-9ae2-4c79-bc16-5d286d3413f8" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringPlanDomain_08322df8-9ae2-4c79-bc16-5d286d3413f8_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RestructuringPlanDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RestructuringPlanAxis_08322df8-9ae2-4c79-bc16-5d286d3413f8" xlink:to="loc_us-gaap_RestructuringPlanDomain_08322df8-9ae2-4c79-bc16-5d286d3413f8_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringPlanDomain_e77c7b5e-4a69-4a0a-9f9c-af01cb5d11ae" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RestructuringPlanDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RestructuringPlanAxis_08322df8-9ae2-4c79-bc16-5d286d3413f8" xlink:to="loc_us-gaap_RestructuringPlanDomain_e77c7b5e-4a69-4a0a-9f9c-af01cb5d11ae" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_A2024RestructuringPlanMember_06683438-1f63-4574-9754-bb6b71c9643e" xlink:href="lcid-20240630.xsd#lcid_A2024RestructuringPlanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringPlanDomain_e77c7b5e-4a69-4a0a-9f9c-af01cb5d11ae" xlink:to="loc_lcid_A2024RestructuringPlanMember_06683438-1f63-4574-9754-bb6b71c9643e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_A2023RestructuringPlanMember_d2b76c13-3c57-4bd4-99cd-9b74609efd35" xlink:href="lcid-20240630.xsd#lcid_A2023RestructuringPlanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringPlanDomain_e77c7b5e-4a69-4a0a-9f9c-af01cb5d11ae" xlink:to="loc_lcid_A2023RestructuringPlanMember_d2b76c13-3c57-4bd4-99cd-9b74609efd35" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringReserveRollForward_1977b2bf-0f0d-481f-81cc-dc6ffb4c412a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RestructuringReserveRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_1236ddaf-50ed-4ed1-88b9-64fde579464c" xlink:to="loc_us-gaap_RestructuringReserveRollForward_1977b2bf-0f0d-481f-81cc-dc6ffb4c412a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringReserve_69510aa4-f1bb-4d72-9d3e-478cfb720fb7" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RestructuringReserve"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringReserveRollForward_1977b2bf-0f0d-481f-81cc-dc6ffb4c412a" xlink:to="loc_us-gaap_RestructuringReserve_69510aa4-f1bb-4d72-9d3e-478cfb720fb7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_RestructuringChargesExcludingNonCash_9be5ed9a-99a7-4d0d-92cc-985c4dcff3be" xlink:href="lcid-20240630.xsd#lcid_RestructuringChargesExcludingNonCash"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringReserveRollForward_1977b2bf-0f0d-481f-81cc-dc6ffb4c412a" xlink:to="loc_lcid_RestructuringChargesExcludingNonCash_9be5ed9a-99a7-4d0d-92cc-985c4dcff3be" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForRestructuring_a0c119a9-36b2-4cb9-a28a-e5a84b862808" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PaymentsForRestructuring"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringReserveRollForward_1977b2bf-0f0d-481f-81cc-dc6ffb4c412a" xlink:to="loc_us-gaap_PaymentsForRestructuring_a0c119a9-36b2-4cb9-a28a-e5a84b862808" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringReserve_f6a49e70-e7c9-4f56-8824-fef7ade95885" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RestructuringReserve"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_RestructuringReserveNonCashItems_1678d033-a6e8-42b6-bfc3-301d6a681062" xlink:href="lcid-20240630.xsd#lcid_RestructuringReserveNonCashItems"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_1236ddaf-50ed-4ed1-88b9-64fde579464c" xlink:to="loc_lcid_RestructuringReserveNonCashItems_1678d033-a6e8-42b6-bfc3-301d6a681062" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_ShareBasedPaymentArrangementAcceleratedExpense_81dc47e4-7e1f-43b5-b1e7-ffba2185c00d" xlink:href="lcid-20240630.xsd#lcid_ShareBasedPaymentArrangementAcceleratedExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_1236ddaf-50ed-4ed1-88b9-64fde579464c" xlink:to="loc_lcid_ShareBasedPaymentArrangementAcceleratedExpense_81dc47e4-7e1f-43b5-b1e7-ffba2185c00d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllocatedShareBasedCompensationExpense_2e0c303a-f0e5-46af-8a00-c260ceea5704" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AllocatedShareBasedCompensationExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_1236ddaf-50ed-4ed1-88b9-64fde579464c" xlink:to="loc_us-gaap_AllocatedShareBasedCompensationExpense_2e0c303a-f0e5-46af-8a00-c260ceea5704" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://lucidmotors.com/role/BALANCESHEETSCOMPONENTSNarrativeDetails" xlink:type="simple" xlink:href="lcid-20240630.xsd#BALANCESHEETSCOMPONENTSNarrativeDetails"/>
  <link:definitionLink xlink:role="http://lucidmotors.com/role/BALANCESHEETSCOMPONENTSNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryLineItems_3964097c-3f8a-4b86-b0b3-ca1db961f2c1" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_InventoryLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryCurrentTable_560a6216-fb6f-49a3-8d20-ec58384680b9" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_InventoryCurrentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_InventoryLineItems_3964097c-3f8a-4b86-b0b3-ca1db961f2c1" xlink:to="loc_us-gaap_InventoryCurrentTable_560a6216-fb6f-49a3-8d20-ec58384680b9" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_ee8cc044-8cb1-488f-9f14-94d943c620e5" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_InventoryCurrentTable_560a6216-fb6f-49a3-8d20-ec58384680b9" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_ee8cc044-8cb1-488f-9f14-94d943c620e5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_ee8cc044-8cb1-488f-9f14-94d943c620e5_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_ee8cc044-8cb1-488f-9f14-94d943c620e5" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_ee8cc044-8cb1-488f-9f14-94d943c620e5_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_2d30fc87-7cf0-4432-bbdd-1f31833210a4" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_ee8cc044-8cb1-488f-9f14-94d943c620e5" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_2d30fc87-7cf0-4432-bbdd-1f31833210a4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConstructionInProgressMember_da2bf89c-baf9-439a-a211-748e07e619c5" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ConstructionInProgressMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_2d30fc87-7cf0-4432-bbdd-1f31833210a4" xlink:to="loc_us-gaap_ConstructionInProgressMember_da2bf89c-baf9-439a-a211-748e07e619c5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_InventoryAndPurchaseObligationWriteDown_6a96b839-ea89-427e-b326-448248483b1c" xlink:href="lcid-20240630.xsd#lcid_InventoryAndPurchaseObligationWriteDown"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_InventoryLineItems_3964097c-3f8a-4b86-b0b3-ca1db961f2c1" xlink:to="loc_lcid_InventoryAndPurchaseObligationWriteDown_6a96b839-ea89-427e-b326-448248483b1c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_DepreciationAndAmortizationExcludingDebtDiscountsAndInsurancePremiums_f19e0ed5-cfde-4c7d-8598-08cb6e0d2fe7" xlink:href="lcid-20240630.xsd#lcid_DepreciationAndAmortizationExcludingDebtDiscountsAndInsurancePremiums"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_InventoryLineItems_3964097c-3f8a-4b86-b0b3-ca1db961f2c1" xlink:to="loc_lcid_DepreciationAndAmortizationExcludingDebtDiscountsAndInsurancePremiums_f19e0ed5-cfde-4c7d-8598-08cb6e0d2fe7" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://lucidmotors.com/role/BALANCESHEETSCOMPONENTSScheduleofPropertyPlantandEquipmentNetDetails" xlink:type="simple" xlink:href="lcid-20240630.xsd#BALANCESHEETSCOMPONENTSScheduleofPropertyPlantandEquipmentNetDetails"/>
  <link:definitionLink xlink:role="http://lucidmotors.com/role/BALANCESHEETSCOMPONENTSScheduleofPropertyPlantandEquipmentNetDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentLineItems_750c6045-2000-4a83-b234-33d4144187ec" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_ed75de9f-9d56-494e-9c3e-8e7f8d0d50b4" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_750c6045-2000-4a83-b234-33d4144187ec" xlink:to="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_ed75de9f-9d56-494e-9c3e-8e7f8d0d50b4" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_7e5a74c5-b493-4c25-9dfd-e2a45e8cec2a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_ed75de9f-9d56-494e-9c3e-8e7f8d0d50b4" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_7e5a74c5-b493-4c25-9dfd-e2a45e8cec2a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_7e5a74c5-b493-4c25-9dfd-e2a45e8cec2a_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_7e5a74c5-b493-4c25-9dfd-e2a45e8cec2a" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_7e5a74c5-b493-4c25-9dfd-e2a45e8cec2a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_9abd4c59-0ec2-4d91-a2a8-b38148b5d9bd" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_7e5a74c5-b493-4c25-9dfd-e2a45e8cec2a" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_9abd4c59-0ec2-4d91-a2a8-b38148b5d9bd" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LandAndLandImprovementsMember_316fe07a-194f-4ad2-a5a3-d314aac417a5" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LandAndLandImprovementsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_9abd4c59-0ec2-4d91-a2a8-b38148b5d9bd" xlink:to="loc_us-gaap_LandAndLandImprovementsMember_316fe07a-194f-4ad2-a5a3-d314aac417a5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BuildingAndBuildingImprovementsMember_882cae44-4bbc-4aea-bf45-5686d48bf63a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BuildingAndBuildingImprovementsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_9abd4c59-0ec2-4d91-a2a8-b38148b5d9bd" xlink:to="loc_us-gaap_BuildingAndBuildingImprovementsMember_882cae44-4bbc-4aea-bf45-5686d48bf63a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_MachineryToolingAndVehiclesMember_580b782c-2478-42a6-8e53-d3ed46889f0b" xlink:href="lcid-20240630.xsd#lcid_MachineryToolingAndVehiclesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_9abd4c59-0ec2-4d91-a2a8-b38148b5d9bd" xlink:to="loc_lcid_MachineryToolingAndVehiclesMember_580b782c-2478-42a6-8e53-d3ed46889f0b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_ServiceLoanerVehiclesMember_7e449c19-d348-496a-ad8b-b4f022554d98" xlink:href="lcid-20240630.xsd#lcid_ServiceLoanerVehiclesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lcid_MachineryToolingAndVehiclesMember_580b782c-2478-42a6-8e53-d3ed46889f0b" xlink:to="loc_lcid_ServiceLoanerVehiclesMember_7e449c19-d348-496a-ad8b-b4f022554d98" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComputerEquipmentMember_a09a6c40-f468-4cab-9457-18aaee6f1e78" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ComputerEquipmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_9abd4c59-0ec2-4d91-a2a8-b38148b5d9bd" xlink:to="loc_us-gaap_ComputerEquipmentMember_a09a6c40-f468-4cab-9457-18aaee6f1e78" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeaseholdImprovementsMember_dda00ab3-182a-4b3f-b3fe-20c6b351b272" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LeaseholdImprovementsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_9abd4c59-0ec2-4d91-a2a8-b38148b5d9bd" xlink:to="loc_us-gaap_LeaseholdImprovementsMember_dda00ab3-182a-4b3f-b3fe-20c6b351b272" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FurnitureAndFixturesMember_e83fca4c-a5d5-4a5b-b8cb-44d465941e7f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FurnitureAndFixturesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_9abd4c59-0ec2-4d91-a2a8-b38148b5d9bd" xlink:to="loc_us-gaap_FurnitureAndFixturesMember_e83fca4c-a5d5-4a5b-b8cb-44d465941e7f" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeaseholdsAndLeaseholdImprovementsMember_33d64ad5-9ac0-487f-82b8-a826cfbce10b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LeaseholdsAndLeaseholdImprovementsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_9abd4c59-0ec2-4d91-a2a8-b38148b5d9bd" xlink:to="loc_us-gaap_LeaseholdsAndLeaseholdImprovementsMember_33d64ad5-9ac0-487f-82b8-a826cfbce10b" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConstructionInProgressMember_d6044f1f-a251-4245-a9e4-28b8e63cdf9b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ConstructionInProgressMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_9abd4c59-0ec2-4d91-a2a8-b38148b5d9bd" xlink:to="loc_us-gaap_ConstructionInProgressMember_d6044f1f-a251-4245-a9e4-28b8e63cdf9b" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_AMP2BuildingBalanceMember_14f5cd96-17fc-4bd2-b0fa-8f323e0b3376" xlink:href="lcid-20240630.xsd#lcid_AMP2BuildingBalanceMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_9abd4c59-0ec2-4d91-a2a8-b38148b5d9bd" xlink:to="loc_lcid_AMP2BuildingBalanceMember_14f5cd96-17fc-4bd2-b0fa-8f323e0b3376" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CounterpartyNameAxis_b9a25c1a-ed0f-46a2-842c-34d29096f721" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_CounterpartyNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_ed75de9f-9d56-494e-9c3e-8e7f8d0d50b4" xlink:to="loc_srt_CounterpartyNameAxis_b9a25c1a-ed0f-46a2-842c-34d29096f721" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_b9a25c1a-ed0f-46a2-842c-34d29096f721_default" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_CounterpartyNameAxis_b9a25c1a-ed0f-46a2-842c-34d29096f721" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_b9a25c1a-ed0f-46a2-842c-34d29096f721_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_785cd890-40c1-42bf-bbec-cc7e5dd5c6d1" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_CounterpartyNameAxis_b9a25c1a-ed0f-46a2-842c-34d29096f721" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_785cd890-40c1-42bf-bbec-cc7e5dd5c6d1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_MinistryOfInvestmentOfSaudiArabiaMember_7a76030e-27aa-45a9-bd36-27e9715315f2" xlink:href="lcid-20240630.xsd#lcid_MinistryOfInvestmentOfSaudiArabiaMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RepurchaseAgreementCounterpartyNameDomain_785cd890-40c1-42bf-bbec-cc7e5dd5c6d1" xlink:to="loc_lcid_MinistryOfInvestmentOfSaudiArabiaMember_7a76030e-27aa-45a9-bd36-27e9715315f2" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionAxis_191bba2f-4e3b-4e86-869b-3be78bc64d48" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_ed75de9f-9d56-494e-9c3e-8e7f8d0d50b4" xlink:to="loc_us-gaap_RelatedPartyTransactionAxis_191bba2f-4e3b-4e86-869b-3be78bc64d48" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionDomain_191bba2f-4e3b-4e86-869b-3be78bc64d48_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RelatedPartyTransactionAxis_191bba2f-4e3b-4e86-869b-3be78bc64d48" xlink:to="loc_us-gaap_RelatedPartyTransactionDomain_191bba2f-4e3b-4e86-869b-3be78bc64d48_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionDomain_5a5f71b8-8cad-4a49-8e33-41b8468bd7c2" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RelatedPartyTransactionAxis_191bba2f-4e3b-4e86-869b-3be78bc64d48" xlink:to="loc_us-gaap_RelatedPartyTransactionDomain_5a5f71b8-8cad-4a49-8e33-41b8468bd7c2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_MISAAgreementGovernmentGrantMember_27285d51-5f32-4480-b9e7-b1d3ec989708" xlink:href="lcid-20240630.xsd#lcid_MISAAgreementGovernmentGrantMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionDomain_5a5f71b8-8cad-4a49-8e33-41b8468bd7c2" xlink:to="loc_lcid_MISAAgreementGovernmentGrantMember_27285d51-5f32-4480-b9e7-b1d3ec989708" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_2a373300-e78e-48e9-b05f-0d9e0643209b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_ed75de9f-9d56-494e-9c3e-8e7f8d0d50b4" xlink:to="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_2a373300-e78e-48e9-b05f-0d9e0643209b" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_2a373300-e78e-48e9-b05f-0d9e0643209b_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_2a373300-e78e-48e9-b05f-0d9e0643209b" xlink:to="loc_us-gaap_RelatedPartyDomain_2a373300-e78e-48e9-b05f-0d9e0643209b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_6be29c35-bbba-4776-9d55-7d03ddcc14ee" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_2a373300-e78e-48e9-b05f-0d9e0643209b" xlink:to="loc_us-gaap_RelatedPartyDomain_6be29c35-bbba-4776-9d55-7d03ddcc14ee" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyMember_23adad7d-13eb-41f9-ac81-85f16f477e43" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain_6be29c35-bbba-4776-9d55-7d03ddcc14ee" xlink:to="loc_us-gaap_RelatedPartyMember_23adad7d-13eb-41f9-ac81-85f16f477e43" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentGross_15d294c2-127a-44a1-9585-b08b4c280647" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentGross"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_750c6045-2000-4a83-b234-33d4144187ec" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentGross_15d294c2-127a-44a1-9585-b08b4c280647" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseRightOfUseAssetBeforeAccumulatedAmortization_4bef403e-d287-407e-b234-d52732dbc8da" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FinanceLeaseRightOfUseAssetBeforeAccumulatedAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_750c6045-2000-4a83-b234-33d4144187ec" xlink:to="loc_us-gaap_FinanceLeaseRightOfUseAssetBeforeAccumulatedAmortization_4bef403e-d287-407e-b234-d52732dbc8da" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization_8c2956a2-8e5a-410d-8707-3c99b305008a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_750c6045-2000-4a83-b234-33d4144187ec" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization_8c2956a2-8e5a-410d-8707-3c99b305008a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization_1a98ba78-61c4-4d55-9108-ae4ba68b67cc" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_750c6045-2000-4a83-b234-33d4144187ec" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization_1a98ba78-61c4-4d55-9108-ae4ba68b67cc" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization_93921e27-27ed-4128-bb21-1de3f5dcbb40" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_750c6045-2000-4a83-b234-33d4144187ec" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization_93921e27-27ed-4128-bb21-1de3f5dcbb40" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionAmountsOfTransaction_1d611280-abe5-4a03-b416-89e3a1c6e84b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionAmountsOfTransaction"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_750c6045-2000-4a83-b234-33d4144187ec" xlink:to="loc_us-gaap_RelatedPartyTransactionAmountsOfTransaction_1d611280-abe5-4a03-b416-89e3a1c6e84b" xlink:type="arc" order="5"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://lucidmotors.com/role/BALANCESHEETSCOMPONENTSScheduleofConstructioninProgressDetails" xlink:type="simple" xlink:href="lcid-20240630.xsd#BALANCESHEETSCOMPONENTSScheduleofConstructioninProgressDetails"/>
  <link:definitionLink xlink:role="http://lucidmotors.com/role/BALANCESHEETSCOMPONENTSScheduleofConstructioninProgressDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentLineItems_2200594d-5201-4e51-84a7-a81229772a2d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_08ecc6fa-9a5d-4a09-a5a1-778515eabb61" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_2200594d-5201-4e51-84a7-a81229772a2d" xlink:to="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_08ecc6fa-9a5d-4a09-a5a1-778515eabb61" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_f28516b8-62a9-446b-839b-812364441c51" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_08ecc6fa-9a5d-4a09-a5a1-778515eabb61" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_f28516b8-62a9-446b-839b-812364441c51" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_f28516b8-62a9-446b-839b-812364441c51_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_f28516b8-62a9-446b-839b-812364441c51" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_f28516b8-62a9-446b-839b-812364441c51_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_ba0fdf5e-9f23-486e-81d7-bbbc15961c21" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_f28516b8-62a9-446b-839b-812364441c51" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_ba0fdf5e-9f23-486e-81d7-bbbc15961c21" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConstructionInProgressMember_7360e59b-cd99-4508-9836-fcf7e64e6779" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ConstructionInProgressMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_ba0fdf5e-9f23-486e-81d7-bbbc15961c21" xlink:to="loc_us-gaap_ConstructionInProgressMember_7360e59b-cd99-4508-9836-fcf7e64e6779" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_MachineryAndToolingMember_fd36671a-dbfc-47c6-bda2-b5297f629474" xlink:href="lcid-20240630.xsd#lcid_MachineryAndToolingMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConstructionInProgressMember_7360e59b-cd99-4508-9836-fcf7e64e6779" xlink:to="loc_lcid_MachineryAndToolingMember_fd36671a-dbfc-47c6-bda2-b5297f629474" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BuildingMember_54673760-94fa-489b-8680-585aee8e0288" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BuildingMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConstructionInProgressMember_7360e59b-cd99-4508-9836-fcf7e64e6779" xlink:to="loc_us-gaap_BuildingMember_54673760-94fa-489b-8680-585aee8e0288" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_AMP2ConstructionInProgressBalanceMember_c5b7082e-76e7-4b7e-84ad-5d238c5d4500" xlink:href="lcid-20240630.xsd#lcid_AMP2ConstructionInProgressBalanceMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BuildingMember_54673760-94fa-489b-8680-585aee8e0288" xlink:to="loc_lcid_AMP2ConstructionInProgressBalanceMember_c5b7082e-76e7-4b7e-84ad-5d238c5d4500" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_ConstructionInProgressLeaseholdImprovementsMember_041f478d-fb76-4b63-9d7f-a321834db2e1" xlink:href="lcid-20240630.xsd#lcid_ConstructionInProgressLeaseholdImprovementsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConstructionInProgressMember_7360e59b-cd99-4508-9836-fcf7e64e6779" xlink:to="loc_lcid_ConstructionInProgressLeaseholdImprovementsMember_041f478d-fb76-4b63-9d7f-a321834db2e1" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CounterpartyNameAxis_affa300a-ca63-440e-af60-7756cdff139f" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_CounterpartyNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_08ecc6fa-9a5d-4a09-a5a1-778515eabb61" xlink:to="loc_srt_CounterpartyNameAxis_affa300a-ca63-440e-af60-7756cdff139f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_affa300a-ca63-440e-af60-7756cdff139f_default" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_CounterpartyNameAxis_affa300a-ca63-440e-af60-7756cdff139f" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_affa300a-ca63-440e-af60-7756cdff139f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_614f93db-5ed6-4658-97b0-a7391628aeea" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_CounterpartyNameAxis_affa300a-ca63-440e-af60-7756cdff139f" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_614f93db-5ed6-4658-97b0-a7391628aeea" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_MinistryOfInvestmentOfSaudiArabiaMember_5f89e7ac-1a24-41a7-b648-6251e9b11c48" xlink:href="lcid-20240630.xsd#lcid_MinistryOfInvestmentOfSaudiArabiaMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RepurchaseAgreementCounterpartyNameDomain_614f93db-5ed6-4658-97b0-a7391628aeea" xlink:to="loc_lcid_MinistryOfInvestmentOfSaudiArabiaMember_5f89e7ac-1a24-41a7-b648-6251e9b11c48" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionAxis_6ed5bd3d-22f5-45ab-a32a-705658b4d2f8" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_08ecc6fa-9a5d-4a09-a5a1-778515eabb61" xlink:to="loc_us-gaap_RelatedPartyTransactionAxis_6ed5bd3d-22f5-45ab-a32a-705658b4d2f8" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionDomain_6ed5bd3d-22f5-45ab-a32a-705658b4d2f8_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RelatedPartyTransactionAxis_6ed5bd3d-22f5-45ab-a32a-705658b4d2f8" xlink:to="loc_us-gaap_RelatedPartyTransactionDomain_6ed5bd3d-22f5-45ab-a32a-705658b4d2f8_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionDomain_943f8e60-bb2e-466d-ac6f-49df923f40c9" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RelatedPartyTransactionAxis_6ed5bd3d-22f5-45ab-a32a-705658b4d2f8" xlink:to="loc_us-gaap_RelatedPartyTransactionDomain_943f8e60-bb2e-466d-ac6f-49df923f40c9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_MISAAgreementGovernmentGrantMember_07ee2085-faff-46d3-b62a-901707a445c6" xlink:href="lcid-20240630.xsd#lcid_MISAAgreementGovernmentGrantMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionDomain_943f8e60-bb2e-466d-ac6f-49df923f40c9" xlink:to="loc_lcid_MISAAgreementGovernmentGrantMember_07ee2085-faff-46d3-b62a-901707a445c6" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_adc245fc-8e58-4d64-b4a0-134ace4f3407" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_08ecc6fa-9a5d-4a09-a5a1-778515eabb61" xlink:to="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_adc245fc-8e58-4d64-b4a0-134ace4f3407" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_adc245fc-8e58-4d64-b4a0-134ace4f3407_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_adc245fc-8e58-4d64-b4a0-134ace4f3407" xlink:to="loc_us-gaap_RelatedPartyDomain_adc245fc-8e58-4d64-b4a0-134ace4f3407_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_f2e40671-c379-4f06-90b6-51c435be34ae" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_adc245fc-8e58-4d64-b4a0-134ace4f3407" xlink:to="loc_us-gaap_RelatedPartyDomain_f2e40671-c379-4f06-90b6-51c435be34ae" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyMember_187068b7-0957-4080-93c8-7ce2cb37c5b7" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain_f2e40671-c379-4f06-90b6-51c435be34ae" xlink:to="loc_us-gaap_RelatedPartyMember_187068b7-0957-4080-93c8-7ce2cb37c5b7" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentGross_417849c3-65d0-464e-aa17-c98c4bc5cfbc" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentGross"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_2200594d-5201-4e51-84a7-a81229772a2d" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentGross_417849c3-65d0-464e-aa17-c98c4bc5cfbc" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionAmountsOfTransaction_e5125954-2e97-4bc2-88be-37e015aadd90" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionAmountsOfTransaction"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_2200594d-5201-4e51-84a7-a81229772a2d" xlink:to="loc_us-gaap_RelatedPartyTransactionAmountsOfTransaction_e5125954-2e97-4bc2-88be-37e015aadd90" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://lucidmotors.com/role/BALANCESHEETSCOMPONENTSScheduleofOtherLongTermLiabilitiesDetails" xlink:type="simple" xlink:href="lcid-20240630.xsd#BALANCESHEETSCOMPONENTSScheduleofOtherLongTermLiabilitiesDetails"/>
  <link:definitionLink xlink:role="http://lucidmotors.com/role/BALANCESHEETSCOMPONENTSScheduleofOtherLongTermLiabilitiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentLineItems_2ba6af67-c6a7-4d99-bf53-cbbd027927e4" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_2f1f6146-8f95-4415-b477-68cb63ecc181" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_2ba6af67-c6a7-4d99-bf53-cbbd027927e4" xlink:to="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_2f1f6146-8f95-4415-b477-68cb63ecc181" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CounterpartyNameAxis_5f4c121c-ccee-4b94-9fa4-5b99dbebedfb" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_CounterpartyNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_2f1f6146-8f95-4415-b477-68cb63ecc181" xlink:to="loc_srt_CounterpartyNameAxis_5f4c121c-ccee-4b94-9fa4-5b99dbebedfb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_5f4c121c-ccee-4b94-9fa4-5b99dbebedfb_default" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_CounterpartyNameAxis_5f4c121c-ccee-4b94-9fa4-5b99dbebedfb" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_5f4c121c-ccee-4b94-9fa4-5b99dbebedfb_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_12c2bab4-f1dc-400a-8a36-835cd6573a55" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_CounterpartyNameAxis_5f4c121c-ccee-4b94-9fa4-5b99dbebedfb" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_12c2bab4-f1dc-400a-8a36-835cd6573a55" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_MinistryOfInvestmentOfSaudiArabiaMember_71866051-9bfe-4bfb-8a3b-cfd469278b7d" xlink:href="lcid-20240630.xsd#lcid_MinistryOfInvestmentOfSaudiArabiaMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RepurchaseAgreementCounterpartyNameDomain_12c2bab4-f1dc-400a-8a36-835cd6573a55" xlink:to="loc_lcid_MinistryOfInvestmentOfSaudiArabiaMember_71866051-9bfe-4bfb-8a3b-cfd469278b7d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_AstonMartinLagondaGlobalHoldingsPlcMember_ae0acfca-a3e2-471e-8868-0159307ef64d" xlink:href="lcid-20240630.xsd#lcid_AstonMartinLagondaGlobalHoldingsPlcMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RepurchaseAgreementCounterpartyNameDomain_12c2bab4-f1dc-400a-8a36-835cd6573a55" xlink:to="loc_lcid_AstonMartinLagondaGlobalHoldingsPlcMember_ae0acfca-a3e2-471e-8868-0159307ef64d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BalanceSheetLocationAxis_88265eb2-97c2-483e-aa31-c16e208681d9" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BalanceSheetLocationAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_2f1f6146-8f95-4415-b477-68cb63ecc181" xlink:to="loc_us-gaap_BalanceSheetLocationAxis_88265eb2-97c2-483e-aa31-c16e208681d9" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BalanceSheetLocationDomain_88265eb2-97c2-483e-aa31-c16e208681d9_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BalanceSheetLocationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BalanceSheetLocationAxis_88265eb2-97c2-483e-aa31-c16e208681d9" xlink:to="loc_us-gaap_BalanceSheetLocationDomain_88265eb2-97c2-483e-aa31-c16e208681d9_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BalanceSheetLocationDomain_3c41c23b-fb15-415c-817f-02bb124ef8f0" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BalanceSheetLocationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BalanceSheetLocationAxis_88265eb2-97c2-483e-aa31-c16e208681d9" xlink:to="loc_us-gaap_BalanceSheetLocationDomain_3c41c23b-fb15-415c-817f-02bb124ef8f0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNoncurrentLiabilitiesMember_439e2544-d38a-4b68-8057-f7fd2bed4036" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherNoncurrentLiabilitiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_3c41c23b-fb15-415c-817f-02bb124ef8f0" xlink:to="loc_us-gaap_OtherNoncurrentLiabilitiesMember_439e2544-d38a-4b68-8057-f7fd2bed4036" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionAxis_10b9461d-7dc5-41c3-ac12-0377b7a15186" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_2f1f6146-8f95-4415-b477-68cb63ecc181" xlink:to="loc_us-gaap_RelatedPartyTransactionAxis_10b9461d-7dc5-41c3-ac12-0377b7a15186" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionDomain_10b9461d-7dc5-41c3-ac12-0377b7a15186_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RelatedPartyTransactionAxis_10b9461d-7dc5-41c3-ac12-0377b7a15186" xlink:to="loc_us-gaap_RelatedPartyTransactionDomain_10b9461d-7dc5-41c3-ac12-0377b7a15186_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionDomain_767083d1-b656-4ff5-b87d-395a29e1ef59" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RelatedPartyTransactionAxis_10b9461d-7dc5-41c3-ac12-0377b7a15186" xlink:to="loc_us-gaap_RelatedPartyTransactionDomain_767083d1-b656-4ff5-b87d-395a29e1ef59" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_MISAAgreementGovernmentGrantMember_f007e583-309c-4b56-9911-d13c715e6c8c" xlink:href="lcid-20240630.xsd#lcid_MISAAgreementGovernmentGrantMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionDomain_767083d1-b656-4ff5-b87d-395a29e1ef59" xlink:to="loc_lcid_MISAAgreementGovernmentGrantMember_f007e583-309c-4b56-9911-d13c715e6c8c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_StrategicTechnologyArrangementMember_477d078b-9a4f-4c0c-a569-6b569ef36a51" xlink:href="lcid-20240630.xsd#lcid_StrategicTechnologyArrangementMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionDomain_767083d1-b656-4ff5-b87d-395a29e1ef59" xlink:to="loc_lcid_StrategicTechnologyArrangementMember_477d078b-9a4f-4c0c-a569-6b569ef36a51" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_daff8b71-f9fb-4f7c-8d74-913ce95e27a0" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_2f1f6146-8f95-4415-b477-68cb63ecc181" xlink:to="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_daff8b71-f9fb-4f7c-8d74-913ce95e27a0" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_daff8b71-f9fb-4f7c-8d74-913ce95e27a0_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_daff8b71-f9fb-4f7c-8d74-913ce95e27a0" xlink:to="loc_us-gaap_RelatedPartyDomain_daff8b71-f9fb-4f7c-8d74-913ce95e27a0_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_dc3a0a04-63ac-4a99-a07c-32712aba9494" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_daff8b71-f9fb-4f7c-8d74-913ce95e27a0" xlink:to="loc_us-gaap_RelatedPartyDomain_dc3a0a04-63ac-4a99-a07c-32712aba9494" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyMember_1cb03dcb-d1d4-4338-a4f1-2d8f5c135d81" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain_dc3a0a04-63ac-4a99-a07c-32712aba9494" xlink:to="loc_us-gaap_RelatedPartyMember_1cb03dcb-d1d4-4338-a4f1-2d8f5c135d81" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_fa1b1ed5-cc4d-4852-b451-442f4c6d3b3a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_2f1f6146-8f95-4415-b477-68cb63ecc181" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_fa1b1ed5-cc4d-4852-b451-442f4c6d3b3a" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_fa1b1ed5-cc4d-4852-b451-442f4c6d3b3a_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_fa1b1ed5-cc4d-4852-b451-442f4c6d3b3a" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_fa1b1ed5-cc4d-4852-b451-442f4c6d3b3a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_d5282ae4-0ad6-432d-947e-e59dd229ce7c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_fa1b1ed5-cc4d-4852-b451-442f4c6d3b3a" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_d5282ae4-0ad6-432d-947e-e59dd229ce7c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_AMP2FixedAssetAndAMP2ConstructionInProgressBalanceMember_ff461b81-e5dc-4c72-a6d7-07746d6abc9a" xlink:href="lcid-20240630.xsd#lcid_AMP2FixedAssetAndAMP2ConstructionInProgressBalanceMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_d5282ae4-0ad6-432d-947e-e59dd229ce7c" xlink:to="loc_lcid_AMP2FixedAssetAndAMP2ConstructionInProgressBalanceMember_ff461b81-e5dc-4c72-a6d7-07746d6abc9a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_8f8a441c-ed90-4e28-a4ce-405af9cd004a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OperatingLeaseLiabilityNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_2ba6af67-c6a7-4d99-bf53-cbbd027927e4" xlink:to="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_8f8a441c-ed90-4e28-a4ce-405af9cd004a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherSundryLiabilitiesNoncurrent_e8cea327-18c3-4733-b36a-3e1e86a1c161" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherSundryLiabilitiesNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_2ba6af67-c6a7-4d99-bf53-cbbd027927e4" xlink:to="loc_us-gaap_OtherSundryLiabilitiesNoncurrent_e8cea327-18c3-4733-b36a-3e1e86a1c161" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrent_c9ea1e3d-c6c3-42e0-bb4f-edfb874f15b7" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherLiabilitiesNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_2ba6af67-c6a7-4d99-bf53-cbbd027927e4" xlink:to="loc_us-gaap_OtherLiabilitiesNoncurrent_c9ea1e3d-c6c3-42e0-bb4f-edfb874f15b7" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionAmountsOfTransaction_9c64db3b-1994-470d-abac-974ce4d6d165" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionAmountsOfTransaction"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_2ba6af67-c6a7-4d99-bf53-cbbd027927e4" xlink:to="loc_us-gaap_RelatedPartyTransactionAmountsOfTransaction_9c64db3b-1994-470d-abac-974ce4d6d165" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://lucidmotors.com/role/BALANCESHEETSCOMPONENTSScheduleofAccruedWarrantyActivitiesDetails" xlink:type="simple" xlink:href="lcid-20240630.xsd#BALANCESHEETSCOMPONENTSScheduleofAccruedWarrantyActivitiesDetails"/>
  <link:definitionLink xlink:role="http://lucidmotors.com/role/BALANCESHEETSCOMPONENTSScheduleofAccruedWarrantyActivitiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProductWarrantyLiabilityLineItems_55482478-00f3-4dab-9982-e026ec6b815c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ProductWarrantyLiabilityLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProductWarrantyLiabilityTable_72a10daf-6572-4277-bf6a-5b8a9562d8a3" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ProductWarrantyLiabilityTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ProductWarrantyLiabilityLineItems_55482478-00f3-4dab-9982-e026ec6b815c" xlink:to="loc_us-gaap_ProductWarrantyLiabilityTable_72a10daf-6572-4277-bf6a-5b8a9562d8a3" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BalanceSheetLocationAxis_ee60b71a-c945-4b68-a21a-4d3733bdf627" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BalanceSheetLocationAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ProductWarrantyLiabilityTable_72a10daf-6572-4277-bf6a-5b8a9562d8a3" xlink:to="loc_us-gaap_BalanceSheetLocationAxis_ee60b71a-c945-4b68-a21a-4d3733bdf627" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BalanceSheetLocationDomain_ee60b71a-c945-4b68-a21a-4d3733bdf627_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BalanceSheetLocationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BalanceSheetLocationAxis_ee60b71a-c945-4b68-a21a-4d3733bdf627" xlink:to="loc_us-gaap_BalanceSheetLocationDomain_ee60b71a-c945-4b68-a21a-4d3733bdf627_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BalanceSheetLocationDomain_a01c4677-4b98-477c-befb-8ebcf879b389" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BalanceSheetLocationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BalanceSheetLocationAxis_ee60b71a-c945-4b68-a21a-4d3733bdf627" xlink:to="loc_us-gaap_BalanceSheetLocationDomain_a01c4677-4b98-477c-befb-8ebcf879b389" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherCurrentLiabilitiesMember_df447952-cc43-4937-9329-a74e7d9566de" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherCurrentLiabilitiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_a01c4677-4b98-477c-befb-8ebcf879b389" xlink:to="loc_us-gaap_OtherCurrentLiabilitiesMember_df447952-cc43-4937-9329-a74e7d9566de" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNoncurrentLiabilitiesMember_4fd6c6a6-cf63-4cf0-a81d-10b03e1b051a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherNoncurrentLiabilitiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_a01c4677-4b98-477c-befb-8ebcf879b389" xlink:to="loc_us-gaap_OtherNoncurrentLiabilitiesMember_4fd6c6a6-cf63-4cf0-a81d-10b03e1b051a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_WarrantyTypeAxis_3b38bfbb-ce76-465b-a20a-82b15ee7da7d" xlink:href="lcid-20240630.xsd#lcid_WarrantyTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ProductWarrantyLiabilityTable_72a10daf-6572-4277-bf6a-5b8a9562d8a3" xlink:to="loc_lcid_WarrantyTypeAxis_3b38bfbb-ce76-465b-a20a-82b15ee7da7d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_WarrantyTypeDomain_3b38bfbb-ce76-465b-a20a-82b15ee7da7d_default" xlink:href="lcid-20240630.xsd#lcid_WarrantyTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_lcid_WarrantyTypeAxis_3b38bfbb-ce76-465b-a20a-82b15ee7da7d" xlink:to="loc_lcid_WarrantyTypeDomain_3b38bfbb-ce76-465b-a20a-82b15ee7da7d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_WarrantyTypeDomain_6cd839d7-0de1-4df6-8d58-1e3ba0a662ab" xlink:href="lcid-20240630.xsd#lcid_WarrantyTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_lcid_WarrantyTypeAxis_3b38bfbb-ce76-465b-a20a-82b15ee7da7d" xlink:to="loc_lcid_WarrantyTypeDomain_6cd839d7-0de1-4df6-8d58-1e3ba0a662ab" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_SpecialWarrantyCampaignMember_56c97610-3095-4c25-82c4-16c71121c15d" xlink:href="lcid-20240630.xsd#lcid_SpecialWarrantyCampaignMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lcid_WarrantyTypeDomain_6cd839d7-0de1-4df6-8d58-1e3ba0a662ab" xlink:to="loc_lcid_SpecialWarrantyCampaignMember_56c97610-3095-4c25-82c4-16c71121c15d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MovementInStandardAndExtendedProductWarrantyIncreaseDecreaseRollForward_f88559b7-0972-47fe-8671-10ad8e733123" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_MovementInStandardAndExtendedProductWarrantyIncreaseDecreaseRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ProductWarrantyLiabilityLineItems_55482478-00f3-4dab-9982-e026ec6b815c" xlink:to="loc_us-gaap_MovementInStandardAndExtendedProductWarrantyIncreaseDecreaseRollForward_f88559b7-0972-47fe-8671-10ad8e733123" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StandardProductWarrantyAccrual_60397c81-4373-4657-aadc-d324ddd24a3b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StandardProductWarrantyAccrual"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MovementInStandardAndExtendedProductWarrantyIncreaseDecreaseRollForward_f88559b7-0972-47fe-8671-10ad8e733123" xlink:to="loc_us-gaap_StandardProductWarrantyAccrual_60397c81-4373-4657-aadc-d324ddd24a3b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StandardProductWarrantyAccrualPayments_81ae80e3-55b4-4295-ba8f-00e0bbdd0c11" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StandardProductWarrantyAccrualPayments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MovementInStandardAndExtendedProductWarrantyIncreaseDecreaseRollForward_f88559b7-0972-47fe-8671-10ad8e733123" xlink:to="loc_us-gaap_StandardProductWarrantyAccrualPayments_81ae80e3-55b4-4295-ba8f-00e0bbdd0c11" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StandardProductWarrantyAccrualWarrantiesIssued_fbfe4afa-00e8-471c-ad5e-851103c35a1a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StandardProductWarrantyAccrualWarrantiesIssued"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MovementInStandardAndExtendedProductWarrantyIncreaseDecreaseRollForward_f88559b7-0972-47fe-8671-10ad8e733123" xlink:to="loc_us-gaap_StandardProductWarrantyAccrualWarrantiesIssued_fbfe4afa-00e8-471c-ad5e-851103c35a1a" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StandardProductWarrantyAccrual_19efb274-102d-4a97-aa37-37d2f175e288" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StandardProductWarrantyAccrual"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://lucidmotors.com/role/FAIRVALUEMEASUREMENTSANDFINANCIALINSTRUMENTSScheduleofFinancialAssetsSubjecttoFairValueMeasurementsonaRecurringBasisbyLevelWithintheFairValueHierarchyDetails" xlink:type="simple" xlink:href="lcid-20240630.xsd#FAIRVALUEMEASUREMENTSANDFINANCIALINSTRUMENTSScheduleofFinancialAssetsSubjecttoFairValueMeasurementsonaRecurringBasisbyLevelWithintheFairValueHierarchyDetails"/>
  <link:definitionLink xlink:role="http://lucidmotors.com/role/FAIRVALUEMEASUREMENTSANDFINANCIALINSTRUMENTSScheduleofFinancialAssetsSubjecttoFairValueMeasurementsonaRecurringBasisbyLevelWithintheFairValueHierarchyDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_ef8ccb36-dcfc-4ebb-9b6a-79f636a61f73" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_5da9ec15-638d-4d95-8a76-815ac5e57818" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_ef8ccb36-dcfc-4ebb-9b6a-79f636a61f73" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_5da9ec15-638d-4d95-8a76-815ac5e57818" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByMeasurementFrequencyAxis_8ac48302-2369-455a-a60b-9eb478ed60c5" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueByMeasurementFrequencyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_5da9ec15-638d-4d95-8a76-815ac5e57818" xlink:to="loc_us-gaap_FairValueByMeasurementFrequencyAxis_8ac48302-2369-455a-a60b-9eb478ed60c5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_8ac48302-2369-455a-a60b-9eb478ed60c5_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueMeasurementFrequencyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_8ac48302-2369-455a-a60b-9eb478ed60c5" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_8ac48302-2369-455a-a60b-9eb478ed60c5_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_d5b16911-ad17-4fd1-8547-36abcf5dba1d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueMeasurementFrequencyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_8ac48302-2369-455a-a60b-9eb478ed60c5" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_d5b16911-ad17-4fd1-8547-36abcf5dba1d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsRecurringMember_ee21dd0d-0498-479c-b712-37c9efdce131" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueMeasurementsRecurringMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementFrequencyDomain_d5b16911-ad17-4fd1-8547-36abcf5dba1d" xlink:to="loc_us-gaap_FairValueMeasurementsRecurringMember_ee21dd0d-0498-479c-b712-37c9efdce131" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialInstrumentAxis_605533fa-daa6-47a0-bbdc-34b58825759b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FinancialInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_5da9ec15-638d-4d95-8a76-815ac5e57818" xlink:to="loc_us-gaap_FinancialInstrumentAxis_605533fa-daa6-47a0-bbdc-34b58825759b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_605533fa-daa6-47a0-bbdc-34b58825759b_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FinancialInstrumentAxis_605533fa-daa6-47a0-bbdc-34b58825759b" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_605533fa-daa6-47a0-bbdc-34b58825759b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_5096013d-8763-4c4f-bd4b-6b7ec9df9bd2" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FinancialInstrumentAxis_605533fa-daa6-47a0-bbdc-34b58825759b" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_5096013d-8763-4c4f-bd4b-6b7ec9df9bd2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MoneyMarketFundsMember_a7cbd5b0-f2d9-4088-b9ce-86596c450865" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_MoneyMarketFundsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_5096013d-8763-4c4f-bd4b-6b7ec9df9bd2" xlink:to="loc_us-gaap_MoneyMarketFundsMember_a7cbd5b0-f2d9-4088-b9ce-86596c450865" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_USTreasurySecuritiesMember_4c18d539-30ab-4070-819a-48dc552d5936" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_USTreasurySecuritiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_5096013d-8763-4c4f-bd4b-6b7ec9df9bd2" xlink:to="loc_us-gaap_USTreasurySecuritiesMember_4c18d539-30ab-4070-819a-48dc552d5936" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CertificatesOfDepositMember_575b7e95-61e4-453c-8b61-0911d859a602" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CertificatesOfDepositMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_5096013d-8763-4c4f-bd4b-6b7ec9df9bd2" xlink:to="loc_us-gaap_CertificatesOfDepositMember_575b7e95-61e4-453c-8b61-0911d859a602" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BankTimeDepositsMember_0c378fa0-91ff-4680-ba78-1997408a9b67" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BankTimeDepositsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_5096013d-8763-4c4f-bd4b-6b7ec9df9bd2" xlink:to="loc_us-gaap_BankTimeDepositsMember_0c378fa0-91ff-4680-ba78-1997408a9b67" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommercialPaperMember_76a49197-8ea7-4140-8329-01d3df3a97df" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommercialPaperMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_5096013d-8763-4c4f-bd4b-6b7ec9df9bd2" xlink:to="loc_us-gaap_CommercialPaperMember_76a49197-8ea7-4140-8329-01d3df3a97df" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CorporateDebtSecuritiesMember_f6e40c9b-1b6f-4a61-8fbb-3315d3b6db80" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CorporateDebtSecuritiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_5096013d-8763-4c4f-bd4b-6b7ec9df9bd2" xlink:to="loc_us-gaap_CorporateDebtSecuritiesMember_f6e40c9b-1b6f-4a61-8fbb-3315d3b6db80" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_66681b07-1254-49ca-9ea4-3a4541328127" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_5da9ec15-638d-4d95-8a76-815ac5e57818" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_66681b07-1254-49ca-9ea4-3a4541328127" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_66681b07-1254-49ca-9ea4-3a4541328127_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_66681b07-1254-49ca-9ea4-3a4541328127" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_66681b07-1254-49ca-9ea4-3a4541328127_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_0086c727-183c-4771-a42e-1a7269c63fc1" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_66681b07-1254-49ca-9ea4-3a4541328127" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_0086c727-183c-4771-a42e-1a7269c63fc1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel1Member_e9b9140f-79b8-4119-b1eb-3f768ac79c83" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueInputsLevel1Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_0086c727-183c-4771-a42e-1a7269c63fc1" xlink:to="loc_us-gaap_FairValueInputsLevel1Member_e9b9140f-79b8-4119-b1eb-3f768ac79c83" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel2Member_3a8b82c1-0b2c-4f7c-831f-ec3cdf847f7d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueInputsLevel2Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_0086c727-183c-4771-a42e-1a7269c63fc1" xlink:to="loc_us-gaap_FairValueInputsLevel2Member_3a8b82c1-0b2c-4f7c-831f-ec3cdf847f7d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAxis_c8a1ed8e-9604-4b17-974b-d4581fe9adc8" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CashAndCashEquivalentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_5da9ec15-638d-4d95-8a76-815ac5e57818" xlink:to="loc_us-gaap_CashAndCashEquivalentsAxis_c8a1ed8e-9604-4b17-974b-d4581fe9adc8" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_c8a1ed8e-9604-4b17-974b-d4581fe9adc8_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_CashAndCashEquivalentsAxis_c8a1ed8e-9604-4b17-974b-d4581fe9adc8" xlink:to="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_c8a1ed8e-9604-4b17-974b-d4581fe9adc8_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_b2a17ce8-1979-4941-ba00-94b646ab7906" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_CashAndCashEquivalentsAxis_c8a1ed8e-9604-4b17-974b-d4581fe9adc8" xlink:to="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_b2a17ce8-1979-4941-ba00-94b646ab7906" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashMember_e1198626-d491-486a-b701-f188b324dc86" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CashMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_b2a17ce8-1979-4941-ba00-94b646ab7906" xlink:to="loc_us-gaap_CashMember_e1198626-d491-486a-b701-f188b324dc86" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_9ab3fa8d-2dd7-4836-a559-abe3e8277353" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_ef8ccb36-dcfc-4ebb-9b6a-79f636a61f73" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_9ab3fa8d-2dd7-4836-a559-abe3e8277353" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsFairValueDisclosure_6126d3df-c45d-4a6a-9374-7f748e04d75f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CashAndCashEquivalentsFairValueDisclosure"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_ef8ccb36-dcfc-4ebb-9b6a-79f636a61f73" xlink:to="loc_us-gaap_CashAndCashEquivalentsFairValueDisclosure_6126d3df-c45d-4a6a-9374-7f748e04d75f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_7c8f7254-7910-4278-9a19-ba9b43586153" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_ef8ccb36-dcfc-4ebb-9b6a-79f636a61f73" xlink:to="loc_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_7c8f7254-7910-4278-9a19-ba9b43586153" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax_f215c4ef-64b5-47e6-a7f7-0bd5165b69a6" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_ef8ccb36-dcfc-4ebb-9b6a-79f636a61f73" xlink:to="loc_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax_f215c4ef-64b5-47e6-a7f7-0bd5165b69a6" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax_dea0b305-5b70-4d5b-8a96-c3f8f5d06d39" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_ef8ccb36-dcfc-4ebb-9b6a-79f636a61f73" xlink:to="loc_us-gaap_AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax_dea0b305-5b70-4d5b-8a96-c3f8f5d06d39" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities_b900ab2f-9125-464f-9fec-8c6154bfe59d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AvailableForSaleSecuritiesDebtSecurities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_ef8ccb36-dcfc-4ebb-9b6a-79f636a61f73" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities_b900ab2f-9125-464f-9fec-8c6154bfe59d" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermInvestments_38525034-da35-4a6c-bb34-a6cabcf7b118" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShortTermInvestments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_ef8ccb36-dcfc-4ebb-9b6a-79f636a61f73" xlink:to="loc_us-gaap_ShortTermInvestments_38525034-da35-4a6c-bb34-a6cabcf7b118" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermInvestments_c2b3b788-8323-48bd-b49e-6f4e7785a8cd" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongTermInvestments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_ef8ccb36-dcfc-4ebb-9b6a-79f636a61f73" xlink:to="loc_us-gaap_LongTermInvestments_c2b3b788-8323-48bd-b49e-6f4e7785a8cd" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_AssetsAmortizedCost_3929af94-9c8e-4c46-8a13-a3aba09f4c4c" xlink:href="lcid-20240630.xsd#lcid_AssetsAmortizedCost"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_ef8ccb36-dcfc-4ebb-9b6a-79f636a61f73" xlink:to="loc_lcid_AssetsAmortizedCost_3929af94-9c8e-4c46-8a13-a3aba09f4c4c" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsFairValueDisclosure_8d5d1378-8918-4453-bfb2-f58021c6b19c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AssetsFairValueDisclosure"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_ef8ccb36-dcfc-4ebb-9b6a-79f636a61f73" xlink:to="loc_us-gaap_AssetsFairValueDisclosure_8d5d1378-8918-4453-bfb2-f58021c6b19c" xlink:type="arc" order="9"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://lucidmotors.com/role/FAIRVALUEMEASUREMENTSANDFINANCIALINSTRUMENTSNarrativeDetails" xlink:type="simple" xlink:href="lcid-20240630.xsd#FAIRVALUEMEASUREMENTSANDFINANCIALINSTRUMENTSNarrativeDetails"/>
  <link:definitionLink xlink:role="http://lucidmotors.com/role/FAIRVALUEMEASUREMENTSANDFINANCIALINSTRUMENTSNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_b8278855-c870-4d2b-8cf6-7b4be0eb98cf" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_23b8a9dc-2b4b-4516-942b-debaf09f5a74" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_b8278855-c870-4d2b-8cf6-7b4be0eb98cf" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_23b8a9dc-2b4b-4516-942b-debaf09f5a74" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CounterpartyNameAxis_27349d48-63e4-4e75-81e6-cc7e79ed2306" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_CounterpartyNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_23b8a9dc-2b4b-4516-942b-debaf09f5a74" xlink:to="loc_srt_CounterpartyNameAxis_27349d48-63e4-4e75-81e6-cc7e79ed2306" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_27349d48-63e4-4e75-81e6-cc7e79ed2306_default" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_CounterpartyNameAxis_27349d48-63e4-4e75-81e6-cc7e79ed2306" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_27349d48-63e4-4e75-81e6-cc7e79ed2306_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_b23e0a89-0cec-4132-bc1d-31de5ea923f1" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_CounterpartyNameAxis_27349d48-63e4-4e75-81e6-cc7e79ed2306" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_b23e0a89-0cec-4132-bc1d-31de5ea923f1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_AstonMartinLagondaGlobalHoldingsPlcMember_3887a879-b02e-40ee-ac8b-7a92ef8bb716" xlink:href="lcid-20240630.xsd#lcid_AstonMartinLagondaGlobalHoldingsPlcMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RepurchaseAgreementCounterpartyNameDomain_b23e0a89-0cec-4132-bc1d-31de5ea923f1" xlink:to="loc_lcid_AstonMartinLagondaGlobalHoldingsPlcMember_3887a879-b02e-40ee-ac8b-7a92ef8bb716" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialInstrumentAxis_a6cf7145-fd62-4ffe-9627-b339730f41e2" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FinancialInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_23b8a9dc-2b4b-4516-942b-debaf09f5a74" xlink:to="loc_us-gaap_FinancialInstrumentAxis_a6cf7145-fd62-4ffe-9627-b339730f41e2" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_a6cf7145-fd62-4ffe-9627-b339730f41e2_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FinancialInstrumentAxis_a6cf7145-fd62-4ffe-9627-b339730f41e2" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_a6cf7145-fd62-4ffe-9627-b339730f41e2_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_ffb9f36d-2ae4-46bb-8eae-8b586c5bbe7b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FinancialInstrumentAxis_a6cf7145-fd62-4ffe-9627-b339730f41e2" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_ffb9f36d-2ae4-46bb-8eae-8b586c5bbe7b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquitySecuritiesMember_f9c4f71d-eab5-483f-b80c-5471c71202ba" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EquitySecuritiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_ffb9f36d-2ae4-46bb-8eae-8b586c5bbe7b" xlink:to="loc_us-gaap_EquitySecuritiesMember_f9c4f71d-eab5-483f-b80c-5471c71202ba" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionAxis_842bc4ed-2cd8-4f45-938e-237fd71c6d12" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_23b8a9dc-2b4b-4516-942b-debaf09f5a74" xlink:to="loc_us-gaap_RelatedPartyTransactionAxis_842bc4ed-2cd8-4f45-938e-237fd71c6d12" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionDomain_842bc4ed-2cd8-4f45-938e-237fd71c6d12_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RelatedPartyTransactionAxis_842bc4ed-2cd8-4f45-938e-237fd71c6d12" xlink:to="loc_us-gaap_RelatedPartyTransactionDomain_842bc4ed-2cd8-4f45-938e-237fd71c6d12_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionDomain_c5d48522-8ccd-40da-aa8c-bfaf94925704" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RelatedPartyTransactionAxis_842bc4ed-2cd8-4f45-938e-237fd71c6d12" xlink:to="loc_us-gaap_RelatedPartyTransactionDomain_c5d48522-8ccd-40da-aa8c-bfaf94925704" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_StrategicTechnologyArrangementTechnologyAccessFeesMember_d1a8bc80-2594-414f-93c6-23d79c7a5859" xlink:href="lcid-20240630.xsd#lcid_StrategicTechnologyArrangementTechnologyAccessFeesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionDomain_c5d48522-8ccd-40da-aa8c-bfaf94925704" xlink:to="loc_lcid_StrategicTechnologyArrangementTechnologyAccessFeesMember_d1a8bc80-2594-414f-93c6-23d79c7a5859" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_953780cf-1252-40e2-a443-bedd9cdd6314" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_23b8a9dc-2b4b-4516-942b-debaf09f5a74" xlink:to="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_953780cf-1252-40e2-a443-bedd9cdd6314" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_953780cf-1252-40e2-a443-bedd9cdd6314_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_953780cf-1252-40e2-a443-bedd9cdd6314" xlink:to="loc_us-gaap_RelatedPartyDomain_953780cf-1252-40e2-a443-bedd9cdd6314_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_f71f6acf-a693-498e-b123-f5a85ac3dda6" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_953780cf-1252-40e2-a443-bedd9cdd6314" xlink:to="loc_us-gaap_RelatedPartyDomain_f71f6acf-a693-498e-b123-f5a85ac3dda6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyMember_819fcf5d-675c-4136-b0e1-4d725b732238" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain_f71f6acf-a693-498e-b123-f5a85ac3dda6" xlink:to="loc_us-gaap_RelatedPartyMember_819fcf5d-675c-4136-b0e1-4d725b732238" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleAccruedInterestAfterAllowanceForCreditLoss_b389d42e-85c9-453a-bce4-eb0c69f972d8" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtSecuritiesAvailableForSaleAccruedInterestAfterAllowanceForCreditLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_b8278855-c870-4d2b-8cf6-7b4be0eb98cf" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleAccruedInterestAfterAllowanceForCreditLoss_b389d42e-85c9-453a-bce4-eb0c69f972d8" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleAccruedInterestAfterAllowanceForCreditLossStatementOfFinancialPositionExtensibleList_80decc5f-0a73-4403-9d8b-98824afdb236" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtSecuritiesAvailableForSaleAccruedInterestAfterAllowanceForCreditLossStatementOfFinancialPositionExtensibleList"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_b8278855-c870-4d2b-8cf6-7b4be0eb98cf" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleAccruedInterestAfterAllowanceForCreditLossStatementOfFinancialPositionExtensibleList_80decc5f-0a73-4403-9d8b-98824afdb236" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleAmortizedCostAllowanceForCreditLossExcludingAccruedInterest_a8ff6e5b-81f5-452d-8799-aa14987e999c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtSecuritiesAvailableForSaleAmortizedCostAllowanceForCreditLossExcludingAccruedInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_b8278855-c870-4d2b-8cf6-7b4be0eb98cf" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleAmortizedCostAllowanceForCreditLossExcludingAccruedInterest_a8ff6e5b-81f5-452d-8799-aa14987e999c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_RelatedPartyTransactionNumberOfSharesReceived_589a3764-ecf0-4afb-ba80-5a50a0edebf0" xlink:href="lcid-20240630.xsd#lcid_RelatedPartyTransactionNumberOfSharesReceived"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_b8278855-c870-4d2b-8cf6-7b4be0eb98cf" xlink:to="loc_lcid_RelatedPartyTransactionNumberOfSharesReceived_589a3764-ecf0-4afb-ba80-5a50a0edebf0" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquitySecuritiesFvNiCurrentAndNoncurrent_fcbd779d-ca05-4423-b83d-05c91469563d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EquitySecuritiesFvNiCurrentAndNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_b8278855-c870-4d2b-8cf6-7b4be0eb98cf" xlink:to="loc_us-gaap_EquitySecuritiesFvNiCurrentAndNoncurrent_fcbd779d-ca05-4423-b83d-05c91469563d" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquitySecuritiesFvNiUnrealizedGainLoss_8596f60c-cabf-42cb-9d29-1290205ed1ab" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EquitySecuritiesFvNiUnrealizedGainLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_b8278855-c870-4d2b-8cf6-7b4be0eb98cf" xlink:to="loc_us-gaap_EquitySecuritiesFvNiUnrealizedGainLoss_8596f60c-cabf-42cb-9d29-1290205ed1ab" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignCurrencyTransactionGainLossUnrealizedAfterTax_9ea43667-dcbb-48a4-a73f-afb7def744a5" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ForeignCurrencyTransactionGainLossUnrealizedAfterTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_b8278855-c870-4d2b-8cf6-7b4be0eb98cf" xlink:to="loc_us-gaap_ForeignCurrencyTransactionGainLossUnrealizedAfterTax_9ea43667-dcbb-48a4-a73f-afb7def744a5" xlink:type="arc" order="6"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://lucidmotors.com/role/FAIRVALUEMEASUREMENTSANDFINANCIALINSTRUMENTSScheduleofReconciliationofCommonStockWarrantLiabilityandDerivativeLiabilityMeasuredandRecordedatFairValueonaRecurringBasisDetails" xlink:type="simple" xlink:href="lcid-20240630.xsd#FAIRVALUEMEASUREMENTSANDFINANCIALINSTRUMENTSScheduleofReconciliationofCommonStockWarrantLiabilityandDerivativeLiabilityMeasuredandRecordedatFairValueonaRecurringBasisDetails"/>
  <link:definitionLink xlink:role="http://lucidmotors.com/role/FAIRVALUEMEASUREMENTSANDFINANCIALINSTRUMENTSScheduleofReconciliationofCommonStockWarrantLiabilityandDerivativeLiabilityMeasuredandRecordedatFairValueonaRecurringBasisDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems_d5206628-2950-4670-8925-52d98aa8b4d4" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTable_dd4b2199-0c7e-47af-a059-6a376d2871af" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems_d5206628-2950-4670-8925-52d98aa8b4d4" xlink:to="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTable_dd4b2199-0c7e-47af-a059-6a376d2871af" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByLiabilityClassAxis_b6fdaf13-205e-46da-999f-878ab3dd32ef" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueByLiabilityClassAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTable_dd4b2199-0c7e-47af-a059-6a376d2871af" xlink:to="loc_us-gaap_FairValueByLiabilityClassAxis_b6fdaf13-205e-46da-999f-878ab3dd32ef" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain_b6fdaf13-205e-46da-999f-878ab3dd32ef_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByLiabilityClassAxis_b6fdaf13-205e-46da-999f-878ab3dd32ef" xlink:to="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain_b6fdaf13-205e-46da-999f-878ab3dd32ef_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain_9a544951-a6ba-4b92-8a88-14a5d2a95f8d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByLiabilityClassAxis_b6fdaf13-205e-46da-999f-878ab3dd32ef" xlink:to="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain_9a544951-a6ba-4b92-8a88-14a5d2a95f8d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember_bbeb5c70-0827-4ec9-a396-2383f8b97448" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain_9a544951-a6ba-4b92-8a88-14a5d2a95f8d" xlink:to="loc_us-gaap_DerivativeFinancialInstrumentsLiabilitiesMember_bbeb5c70-0827-4ec9-a396-2383f8b97448" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_CommonStockWarrantLiabilityMember_31e0699f-3164-41c4-8a95-9d284ba31691" xlink:href="lcid-20240630.xsd#lcid_CommonStockWarrantLiabilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain_9a544951-a6ba-4b92-8a88-14a5d2a95f8d" xlink:to="loc_lcid_CommonStockWarrantLiabilityMember_31e0699f-3164-41c4-8a95-9d284ba31691" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_8d02b624-054b-49a5-b570-08619e96e8bb" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems_d5206628-2950-4670-8925-52d98aa8b4d4" xlink:to="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_8d02b624-054b-49a5-b570-08619e96e8bb" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue_1dfeeab8-6db3-48bc-9b2f-f2716aeae492" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_8d02b624-054b-49a5-b570-08619e96e8bb" xlink:to="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue_1dfeeab8-6db3-48bc-9b2f-f2716aeae492" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityIssues_53040535-84ac-450e-a822-bf784a77afab" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityIssues"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_8d02b624-054b-49a5-b570-08619e96e8bb" xlink:to="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityIssues_53040535-84ac-450e-a822-bf784a77afab" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings_ec772cd0-499b-4f34-a29f-9a325946946f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_8d02b624-054b-49a5-b570-08619e96e8bb" xlink:to="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings_ec772cd0-499b-4f34-a29f-9a325946946f" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue_51ba3ae7-0ea6-46e7-ae21-d733be511ba8" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://lucidmotors.com/role/DEBT2026NotesNarrativeDetails" xlink:type="simple" xlink:href="lcid-20240630.xsd#DEBT2026NotesNarrativeDetails"/>
  <link:definitionLink xlink:role="http://lucidmotors.com/role/DEBT2026NotesNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_f654632c-29f3-4888-98e1-4f2a30e0cebb" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable_3266a62f-ae5b-48d1-803f-257ae0927935" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DebtInstrumentLineItems_f654632c-29f3-4888-98e1-4f2a30e0cebb" xlink:to="loc_us-gaap_DebtInstrumentTable_3266a62f-ae5b-48d1-803f-257ae0927935" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_5394f4ee-d84a-435a-9be5-a832e4b66a4d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_3266a62f-ae5b-48d1-803f-257ae0927935" xlink:to="loc_us-gaap_DebtInstrumentAxis_5394f4ee-d84a-435a-9be5-a832e4b66a4d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_5394f4ee-d84a-435a-9be5-a832e4b66a4d_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_5394f4ee-d84a-435a-9be5-a832e4b66a4d" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_5394f4ee-d84a-435a-9be5-a832e4b66a4d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_80425713-c872-40ee-b5b4-1cca41d46a27" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_5394f4ee-d84a-435a-9be5-a832e4b66a4d" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_80425713-c872-40ee-b5b4-1cca41d46a27" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_A125ConvertibleSeniorNotesDue2026Member_1d54eeca-765e-48b7-9cd2-9a4e5eec8d08" xlink:href="lcid-20240630.xsd#lcid_A125ConvertibleSeniorNotesDue2026Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_80425713-c872-40ee-b5b4-1cca41d46a27" xlink:to="loc_lcid_A125ConvertibleSeniorNotesDue2026Member_1d54eeca-765e-48b7-9cd2-9a4e5eec8d08" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_f9b0f73f-3639-4c55-a375-684614181123" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_3266a62f-ae5b-48d1-803f-257ae0927935" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_f9b0f73f-3639-4c55-a375-684614181123" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_f9b0f73f-3639-4c55-a375-684614181123_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_f9b0f73f-3639-4c55-a375-684614181123" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_f9b0f73f-3639-4c55-a375-684614181123_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_4596fcdc-5717-4602-9297-cfc93b99316c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_f9b0f73f-3639-4c55-a375-684614181123" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_4596fcdc-5717-4602-9297-cfc93b99316c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConvertibleDebtMember_b97e10b8-170d-42e3-819f-11d9df489af1" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ConvertibleDebtMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_4596fcdc-5717-4602-9297-cfc93b99316c" xlink:to="loc_us-gaap_ConvertibleDebtMember_b97e10b8-170d-42e3-819f-11d9df489af1" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentRedemptionPeriodAxis_e489e303-5c16-4867-bf82-c2cd79bad0e3" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentRedemptionPeriodAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_3266a62f-ae5b-48d1-803f-257ae0927935" xlink:to="loc_us-gaap_DebtInstrumentRedemptionPeriodAxis_e489e303-5c16-4867-bf82-c2cd79bad0e3" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentRedemptionPeriodDomain_e489e303-5c16-4867-bf82-c2cd79bad0e3_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentRedemptionPeriodDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentRedemptionPeriodAxis_e489e303-5c16-4867-bf82-c2cd79bad0e3" xlink:to="loc_us-gaap_DebtInstrumentRedemptionPeriodDomain_e489e303-5c16-4867-bf82-c2cd79bad0e3_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentRedemptionPeriodDomain_3475cd2e-00a3-449d-9bf3-07fbf8fdcaa0" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentRedemptionPeriodDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentRedemptionPeriodAxis_e489e303-5c16-4867-bf82-c2cd79bad0e3" xlink:to="loc_us-gaap_DebtInstrumentRedemptionPeriodDomain_3475cd2e-00a3-449d-9bf3-07fbf8fdcaa0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentRedemptionPeriodOneMember_84390c81-984f-45a6-ae3d-237fab8154b4" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentRedemptionPeriodOneMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentRedemptionPeriodDomain_3475cd2e-00a3-449d-9bf3-07fbf8fdcaa0" xlink:to="loc_us-gaap_DebtInstrumentRedemptionPeriodOneMember_84390c81-984f-45a6-ae3d-237fab8154b4" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentRedemptionPeriodTwoMember_ef6ea83e-bdf4-453b-a7b1-825a95029a55" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentRedemptionPeriodTwoMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentRedemptionPeriodDomain_3475cd2e-00a3-449d-9bf3-07fbf8fdcaa0" xlink:to="loc_us-gaap_DebtInstrumentRedemptionPeriodTwoMember_ef6ea83e-bdf4-453b-a7b1-825a95029a55" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentFaceAmount_f8ba52c0-4e87-4932-a8bf-3c795c405d24" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentFaceAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_f654632c-29f3-4888-98e1-4f2a30e0cebb" xlink:to="loc_us-gaap_DebtInstrumentFaceAmount_f8ba52c0-4e87-4932-a8bf-3c795c405d24" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_347d87a7-7fdb-4e1e-8b65-e53e0768d19b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_f654632c-29f3-4888-98e1-4f2a30e0cebb" xlink:to="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_347d87a7-7fdb-4e1e-8b65-e53e0768d19b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_DebtInstrumentIssuancePricePercentageOfPrincipalAmount_26241799-f7e1-4a01-b3b2-dd42df4bcc6b" xlink:href="lcid-20240630.xsd#lcid_DebtInstrumentIssuancePricePercentageOfPrincipalAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_f654632c-29f3-4888-98e1-4f2a30e0cebb" xlink:to="loc_lcid_DebtInstrumentIssuancePricePercentageOfPrincipalAmount_26241799-f7e1-4a01-b3b2-dd42df4bcc6b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromConvertibleDebt_62195c13-b8a8-412a-9dfe-f560799ab72e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ProceedsFromConvertibleDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_f654632c-29f3-4888-98e1-4f2a30e0cebb" xlink:to="loc_us-gaap_ProceedsFromConvertibleDebt_62195c13-b8a8-412a-9dfe-f560799ab72e" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentConvertibleConversionRatio1_e37b9b13-7bed-4d6e-8c32-d19526d74882" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentConvertibleConversionRatio1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_f654632c-29f3-4888-98e1-4f2a30e0cebb" xlink:to="loc_us-gaap_DebtInstrumentConvertibleConversionRatio1_e37b9b13-7bed-4d6e-8c32-d19526d74882" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentConvertibleConversionPrice1_a29f0f16-bf65-482f-8ec5-08f30f1eef70" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentConvertibleConversionPrice1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_f654632c-29f3-4888-98e1-4f2a30e0cebb" xlink:to="loc_us-gaap_DebtInstrumentConvertibleConversionPrice1_a29f0f16-bf65-482f-8ec5-08f30f1eef70" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentConvertibleThresholdPercentageOfStockPriceTrigger_3d5306cb-834f-44b8-9bec-8191fe5cb434" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentConvertibleThresholdPercentageOfStockPriceTrigger"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_f654632c-29f3-4888-98e1-4f2a30e0cebb" xlink:to="loc_us-gaap_DebtInstrumentConvertibleThresholdPercentageOfStockPriceTrigger_3d5306cb-834f-44b8-9bec-8191fe5cb434" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentConvertibleThresholdTradingDays_7c296106-ba70-4c40-839d-d4c36ada7e4c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentConvertibleThresholdTradingDays"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_f654632c-29f3-4888-98e1-4f2a30e0cebb" xlink:to="loc_us-gaap_DebtInstrumentConvertibleThresholdTradingDays_7c296106-ba70-4c40-839d-d4c36ada7e4c" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentRedemptionPricePercentageOfPrincipalAmountRedeemed_0e130dcb-79fb-4936-8c23-14899c5a60b9" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentRedemptionPricePercentageOfPrincipalAmountRedeemed"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_f654632c-29f3-4888-98e1-4f2a30e0cebb" xlink:to="loc_us-gaap_DebtInstrumentRedemptionPricePercentageOfPrincipalAmountRedeemed_0e130dcb-79fb-4936-8c23-14899c5a60b9" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentConvertibleThresholdConsecutiveTradingDays1_7d81436c-7700-4523-8fe6-e636868bfe43" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentConvertibleThresholdConsecutiveTradingDays1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_f654632c-29f3-4888-98e1-4f2a30e0cebb" xlink:to="loc_us-gaap_DebtInstrumentConvertibleThresholdConsecutiveTradingDays1_7d81436c-7700-4523-8fe6-e636868bfe43" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_DebtInstrumentConvertibleRedemptionPeriodNumberOfConsecutiveBusinessDays_4c49b174-5ac9-47c0-9917-87d0b83dc64f" xlink:href="lcid-20240630.xsd#lcid_DebtInstrumentConvertibleRedemptionPeriodNumberOfConsecutiveBusinessDays"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_f654632c-29f3-4888-98e1-4f2a30e0cebb" xlink:to="loc_lcid_DebtInstrumentConvertibleRedemptionPeriodNumberOfConsecutiveBusinessDays_4c49b174-5ac9-47c0-9917-87d0b83dc64f" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateEffectivePercentage_714b758d-49c8-4741-954e-0e17e25ed5de" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentInterestRateEffectivePercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_f654632c-29f3-4888-98e1-4f2a30e0cebb" xlink:to="loc_us-gaap_DebtInstrumentInterestRateEffectivePercentage_714b758d-49c8-4741-954e-0e17e25ed5de" xlink:type="arc" order="11"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://lucidmotors.com/role/DEBTScheduleofConvertibleNotesDetails" xlink:type="simple" xlink:href="lcid-20240630.xsd#DEBTScheduleofConvertibleNotesDetails"/>
  <link:definitionLink xlink:role="http://lucidmotors.com/role/DEBTScheduleofConvertibleNotesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentRedemptionLineItems_13a576e5-1ac4-4f00-8e07-18a541ad8104" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentRedemptionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentRedemptionTable_5ea8b9fd-b219-4a58-b5d2-4b7f6992ebdf" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentRedemptionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DebtInstrumentRedemptionLineItems_13a576e5-1ac4-4f00-8e07-18a541ad8104" xlink:to="loc_us-gaap_DebtInstrumentRedemptionTable_5ea8b9fd-b219-4a58-b5d2-4b7f6992ebdf" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_3c77b95d-0e18-4145-9da4-f682bf943c02" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentRedemptionTable_5ea8b9fd-b219-4a58-b5d2-4b7f6992ebdf" xlink:to="loc_us-gaap_DebtInstrumentAxis_3c77b95d-0e18-4145-9da4-f682bf943c02" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_3c77b95d-0e18-4145-9da4-f682bf943c02_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_3c77b95d-0e18-4145-9da4-f682bf943c02" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_3c77b95d-0e18-4145-9da4-f682bf943c02_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_505955a0-b4a7-41fb-a63d-d006b8efd10c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_3c77b95d-0e18-4145-9da4-f682bf943c02" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_505955a0-b4a7-41fb-a63d-d006b8efd10c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_A125ConvertibleSeniorNotesDue2026Member_b9b7bb9d-5afb-4ac7-8696-342db03e0347" xlink:href="lcid-20240630.xsd#lcid_A125ConvertibleSeniorNotesDue2026Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_505955a0-b4a7-41fb-a63d-d006b8efd10c" xlink:to="loc_lcid_A125ConvertibleSeniorNotesDue2026Member_b9b7bb9d-5afb-4ac7-8696-342db03e0347" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_93b0f3e3-b2c0-44cc-92d8-eb96147ec9d5" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentRedemptionTable_5ea8b9fd-b219-4a58-b5d2-4b7f6992ebdf" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_93b0f3e3-b2c0-44cc-92d8-eb96147ec9d5" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_93b0f3e3-b2c0-44cc-92d8-eb96147ec9d5_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_93b0f3e3-b2c0-44cc-92d8-eb96147ec9d5" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_93b0f3e3-b2c0-44cc-92d8-eb96147ec9d5_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_a90205de-2c7f-4645-bb96-beb73c4afbe7" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_93b0f3e3-b2c0-44cc-92d8-eb96147ec9d5" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_a90205de-2c7f-4645-bb96-beb73c4afbe7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel2Member_de8b6880-85cc-4115-9811-c3548bdc64e3" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueInputsLevel2Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_a90205de-2c7f-4645-bb96-beb73c4afbe7" xlink:to="loc_us-gaap_FairValueInputsLevel2Member_de8b6880-85cc-4115-9811-c3548bdc64e3" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentFaceAmount_1c789b8b-b8ae-486c-a10a-61b6d862bdba" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentFaceAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentRedemptionLineItems_13a576e5-1ac4-4f00-8e07-18a541ad8104" xlink:to="loc_us-gaap_DebtInstrumentFaceAmount_1c789b8b-b8ae-486c-a10a-61b6d862bdba" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet_89960832-0a1e-47d3-b1a8-99dca1f62a38" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentRedemptionLineItems_13a576e5-1ac4-4f00-8e07-18a541ad8104" xlink:to="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet_89960832-0a1e-47d3-b1a8-99dca1f62a38" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConvertibleDebt_da30e070-c391-4fe7-a311-f0ebf9eed492" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ConvertibleDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentRedemptionLineItems_13a576e5-1ac4-4f00-8e07-18a541ad8104" xlink:to="loc_us-gaap_ConvertibleDebt_da30e070-c391-4fe7-a311-f0ebf9eed492" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConvertibleDebtFairValueDisclosures_30900acc-f23f-4832-8471-64729c89bd53" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ConvertibleDebtFairValueDisclosures"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentRedemptionLineItems_13a576e5-1ac4-4f00-8e07-18a541ad8104" xlink:to="loc_us-gaap_ConvertibleDebtFairValueDisclosures_30900acc-f23f-4832-8471-64729c89bd53" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://lucidmotors.com/role/DEBTScheduleofComponentsofInterestExpenseDetails" xlink:type="simple" xlink:href="lcid-20240630.xsd#DEBTScheduleofComponentsofInterestExpenseDetails"/>
  <link:definitionLink xlink:role="http://lucidmotors.com/role/DEBTScheduleofComponentsofInterestExpenseDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentRedemptionLineItems_1b42ae88-83f2-4c42-a101-95032af7a597" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentRedemptionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentRedemptionTable_ea89a693-67d1-47ca-b445-1f31c2d4a26c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentRedemptionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DebtInstrumentRedemptionLineItems_1b42ae88-83f2-4c42-a101-95032af7a597" xlink:to="loc_us-gaap_DebtInstrumentRedemptionTable_ea89a693-67d1-47ca-b445-1f31c2d4a26c" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_18cb8e98-618f-4dc4-b5b3-e83b2055bf0c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentRedemptionTable_ea89a693-67d1-47ca-b445-1f31c2d4a26c" xlink:to="loc_us-gaap_DebtInstrumentAxis_18cb8e98-618f-4dc4-b5b3-e83b2055bf0c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_18cb8e98-618f-4dc4-b5b3-e83b2055bf0c_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_18cb8e98-618f-4dc4-b5b3-e83b2055bf0c" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_18cb8e98-618f-4dc4-b5b3-e83b2055bf0c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_b0af183b-86b3-4f79-9f57-e19f73a763d3" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_18cb8e98-618f-4dc4-b5b3-e83b2055bf0c" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_b0af183b-86b3-4f79-9f57-e19f73a763d3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_A125ConvertibleSeniorNotesDue2026Member_5f30a7b8-e19f-4a45-82c5-f498d05e4780" xlink:href="lcid-20240630.xsd#lcid_A125ConvertibleSeniorNotesDue2026Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_b0af183b-86b3-4f79-9f57-e19f73a763d3" xlink:to="loc_lcid_A125ConvertibleSeniorNotesDue2026Member_5f30a7b8-e19f-4a45-82c5-f498d05e4780" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_6121178d-55ef-47ce-bf65-d1bcc6d60159" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentRedemptionTable_ea89a693-67d1-47ca-b445-1f31c2d4a26c" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_6121178d-55ef-47ce-bf65-d1bcc6d60159" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_6121178d-55ef-47ce-bf65-d1bcc6d60159_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_6121178d-55ef-47ce-bf65-d1bcc6d60159" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_6121178d-55ef-47ce-bf65-d1bcc6d60159_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_9083c757-95b8-4307-8f65-04c000d786b4" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_6121178d-55ef-47ce-bf65-d1bcc6d60159" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_9083c757-95b8-4307-8f65-04c000d786b4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConvertibleDebtMember_d95326c7-f595-4748-a55b-af7ca0d2885f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ConvertibleDebtMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_9083c757-95b8-4307-8f65-04c000d786b4" xlink:to="loc_us-gaap_ConvertibleDebtMember_d95326c7-f595-4748-a55b-af7ca0d2885f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseDebtExcludingAmortization_74db766d-b569-4dc9-a44e-a6a39faff7b7" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_InterestExpenseDebtExcludingAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentRedemptionLineItems_1b42ae88-83f2-4c42-a101-95032af7a597" xlink:to="loc_us-gaap_InterestExpenseDebtExcludingAmortization_74db766d-b569-4dc9-a44e-a6a39faff7b7" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfFinancingCosts_6305de79-22a8-49b4-8c68-2f5a491701f8" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AmortizationOfFinancingCosts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentRedemptionLineItems_1b42ae88-83f2-4c42-a101-95032af7a597" xlink:to="loc_us-gaap_AmortizationOfFinancingCosts_6305de79-22a8-49b4-8c68-2f5a491701f8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseDebt_98e718d0-5744-44de-833c-42f44c73071f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_InterestExpenseDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentRedemptionLineItems_1b42ae88-83f2-4c42-a101-95032af7a597" xlink:to="loc_us-gaap_InterestExpenseDebt_98e718d0-5744-44de-833c-42f44c73071f" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://lucidmotors.com/role/DEBTSIDFLoanAgreementNarrativeDetails" xlink:type="simple" xlink:href="lcid-20240630.xsd#DEBTSIDFLoanAgreementNarrativeDetails"/>
  <link:definitionLink xlink:role="http://lucidmotors.com/role/DEBTSIDFLoanAgreementNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_91379ba1-c201-4117-ab87-633648e13f01" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable_298dedee-3fea-4c9c-a267-76ba9d28e823" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DebtInstrumentLineItems_91379ba1-c201-4117-ab87-633648e13f01" xlink:to="loc_us-gaap_DebtInstrumentTable_298dedee-3fea-4c9c-a267-76ba9d28e823" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_74d971e8-10d0-404c-80d2-8a9997ebd7df" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_298dedee-3fea-4c9c-a267-76ba9d28e823" xlink:to="loc_us-gaap_DebtInstrumentAxis_74d971e8-10d0-404c-80d2-8a9997ebd7df" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_74d971e8-10d0-404c-80d2-8a9997ebd7df_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_74d971e8-10d0-404c-80d2-8a9997ebd7df" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_74d971e8-10d0-404c-80d2-8a9997ebd7df_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_7ca7fe70-5e88-4f16-8469-1264cb0d264d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_74d971e8-10d0-404c-80d2-8a9997ebd7df" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_7ca7fe70-5e88-4f16-8469-1264cb0d264d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_SaudiIndustrialDevelopmentFundLoanAgreementMember_863b64e3-34b7-4e49-8fc2-0f781928d6f5" xlink:href="lcid-20240630.xsd#lcid_SaudiIndustrialDevelopmentFundLoanAgreementMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_7ca7fe70-5e88-4f16-8469-1264cb0d264d" xlink:to="loc_lcid_SaudiIndustrialDevelopmentFundLoanAgreementMember_863b64e3-34b7-4e49-8fc2-0f781928d6f5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_31987a66-054c-4cd3-b68f-4bc1d8bc981f" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_298dedee-3fea-4c9c-a267-76ba9d28e823" xlink:to="loc_srt_RangeAxis_31987a66-054c-4cd3-b68f-4bc1d8bc981f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_31987a66-054c-4cd3-b68f-4bc1d8bc981f_default" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_31987a66-054c-4cd3-b68f-4bc1d8bc981f" xlink:to="loc_srt_RangeMember_31987a66-054c-4cd3-b68f-4bc1d8bc981f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_5be20c67-bc77-4534-a50f-24eebd4c18d5" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_31987a66-054c-4cd3-b68f-4bc1d8bc981f" xlink:to="loc_srt_RangeMember_5be20c67-bc77-4534-a50f-24eebd4c18d5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_4677a25e-64d5-4a90-81f6-4ee31a3d5b09" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_5be20c67-bc77-4534-a50f-24eebd4c18d5" xlink:to="loc_srt_MinimumMember_4677a25e-64d5-4a90-81f6-4ee31a3d5b09" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_350e0522-4fda-4d58-b33e-e22e0bce6d3a" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_5be20c67-bc77-4534-a50f-24eebd4c18d5" xlink:to="loc_srt_MaximumMember_350e0522-4fda-4d58-b33e-e22e0bce6d3a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentFaceAmount_cea238ea-70a2-448e-9b01-6270b776d4c4" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentFaceAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_91379ba1-c201-4117-ab87-633648e13f01" xlink:to="loc_us-gaap_DebtInstrumentFaceAmount_cea238ea-70a2-448e-9b01-6270b776d4c4" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentPeriodicPaymentPrincipal_ef8e19ca-bd0a-423f-994f-df34a87b57f7" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentPeriodicPaymentPrincipal"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_91379ba1-c201-4117-ab87-633648e13f01" xlink:to="loc_us-gaap_DebtInstrumentPeriodicPaymentPrincipal_ef8e19ca-bd0a-423f-994f-df34a87b57f7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentFeeAmount_6c0fff0d-8e1c-4c3b-8de3-7132453c6fdd" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentFeeAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_91379ba1-c201-4117-ab87-633648e13f01" xlink:to="loc_us-gaap_DebtInstrumentFeeAmount_6c0fff0d-8e1c-4c3b-8de3-7132453c6fdd" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebt_d2e6d308-13c7-4663-ac8e-8d72fc1aa4fa" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongTermDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_91379ba1-c201-4117-ab87-633648e13f01" xlink:to="loc_us-gaap_LongTermDebt_d2e6d308-13c7-4663-ac8e-8d72fc1aa4fa" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://lucidmotors.com/role/DEBTGIBFacilityAgreementNarrativeDetails" xlink:type="simple" xlink:href="lcid-20240630.xsd#DEBTGIBFacilityAgreementNarrativeDetails"/>
  <link:definitionLink xlink:role="http://lucidmotors.com/role/DEBTGIBFacilityAgreementNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_256cdb3d-1c34-4267-8655-780a5b254ee6" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable_100e514f-05e3-4a49-a6f4-0bf599d18c92" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DebtInstrumentLineItems_256cdb3d-1c34-4267-8655-780a5b254ee6" xlink:to="loc_us-gaap_DebtInstrumentTable_100e514f-05e3-4a49-a6f4-0bf599d18c92" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityAxis_7f3d8394-18d2-4c9f-892d-8c4d9ee17fa3" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CreditFacilityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_100e514f-05e3-4a49-a6f4-0bf599d18c92" xlink:to="loc_us-gaap_CreditFacilityAxis_7f3d8394-18d2-4c9f-892d-8c4d9ee17fa3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_7f3d8394-18d2-4c9f-892d-8c4d9ee17fa3_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_CreditFacilityAxis_7f3d8394-18d2-4c9f-892d-8c4d9ee17fa3" xlink:to="loc_us-gaap_CreditFacilityDomain_7f3d8394-18d2-4c9f-892d-8c4d9ee17fa3_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_fc7f0f71-0d83-4e2c-a10b-f81c041a7f75" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_CreditFacilityAxis_7f3d8394-18d2-4c9f-892d-8c4d9ee17fa3" xlink:to="loc_us-gaap_CreditFacilityDomain_fc7f0f71-0d83-4e2c-a10b-f81c041a7f75" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevolvingCreditFacilityMember_46618539-4fce-44ef-866f-49a01593dee3" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RevolvingCreditFacilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_fc7f0f71-0d83-4e2c-a10b-f81c041a7f75" xlink:to="loc_us-gaap_RevolvingCreditFacilityMember_46618539-4fce-44ef-866f-49a01593dee3" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BridgeLoanMember_5864af40-de9d-45b9-8730-2c088de08045" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BridgeLoanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_fc7f0f71-0d83-4e2c-a10b-f81c041a7f75" xlink:to="loc_us-gaap_BridgeLoanMember_5864af40-de9d-45b9-8730-2c088de08045" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_WorkingCapitalFacilityMember_a1042a6d-5cf4-4baa-8c43-efc7628e66e6" xlink:href="lcid-20240630.xsd#lcid_WorkingCapitalFacilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_fc7f0f71-0d83-4e2c-a10b-f81c041a7f75" xlink:to="loc_lcid_WorkingCapitalFacilityMember_a1042a6d-5cf4-4baa-8c43-efc7628e66e6" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_d99a2ccc-529c-493f-b11e-50d7dd0507e8" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_100e514f-05e3-4a49-a6f4-0bf599d18c92" xlink:to="loc_us-gaap_DebtInstrumentAxis_d99a2ccc-529c-493f-b11e-50d7dd0507e8" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_d99a2ccc-529c-493f-b11e-50d7dd0507e8_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_d99a2ccc-529c-493f-b11e-50d7dd0507e8" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_d99a2ccc-529c-493f-b11e-50d7dd0507e8_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_59dfedb5-932f-4341-b95b-78b7a76a2d54" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_d99a2ccc-529c-493f-b11e-50d7dd0507e8" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_59dfedb5-932f-4341-b95b-78b7a76a2d54" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_GIBFacilityAgreementMember_5a7d572b-4ead-42a4-8626-24c97b110013" xlink:href="lcid-20240630.xsd#lcid_GIBFacilityAgreementMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_59dfedb5-932f-4341-b95b-78b7a76a2d54" xlink:to="loc_lcid_GIBFacilityAgreementMember_5a7d572b-4ead-42a4-8626-24c97b110013" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_AmendedGIBFacilityAgreementMember_39bcb664-bea2-4af7-8800-5eea37eb4499" xlink:href="lcid-20240630.xsd#lcid_AmendedGIBFacilityAgreementMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_59dfedb5-932f-4341-b95b-78b7a76a2d54" xlink:to="loc_lcid_AmendedGIBFacilityAgreementMember_39bcb664-bea2-4af7-8800-5eea37eb4499" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_9a462973-7291-4531-aeb2-7381fc027614" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_100e514f-05e3-4a49-a6f4-0bf599d18c92" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_9a462973-7291-4531-aeb2-7381fc027614" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_9a462973-7291-4531-aeb2-7381fc027614_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_9a462973-7291-4531-aeb2-7381fc027614" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_9a462973-7291-4531-aeb2-7381fc027614_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_aa85bf6e-c508-4050-ac6e-302512b87ce4" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_9a462973-7291-4531-aeb2-7381fc027614" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_aa85bf6e-c508-4050-ac6e-302512b87ce4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditMember_b2d9b289-8857-4a8e-87ef-5945edf330b6" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LineOfCreditMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_aa85bf6e-c508-4050-ac6e-302512b87ce4" xlink:to="loc_us-gaap_LineOfCreditMember_b2d9b289-8857-4a8e-87ef-5945edf330b6" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_8fe62193-2c25-4fa5-931d-e8354599fcf9" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_100e514f-05e3-4a49-a6f4-0bf599d18c92" xlink:to="loc_srt_RangeAxis_8fe62193-2c25-4fa5-931d-e8354599fcf9" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_8fe62193-2c25-4fa5-931d-e8354599fcf9_default" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_8fe62193-2c25-4fa5-931d-e8354599fcf9" xlink:to="loc_srt_RangeMember_8fe62193-2c25-4fa5-931d-e8354599fcf9_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_56aa87d9-1fc4-426f-8f44-d9b2720be704" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_8fe62193-2c25-4fa5-931d-e8354599fcf9" xlink:to="loc_srt_RangeMember_56aa87d9-1fc4-426f-8f44-d9b2720be704" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_d373b4f8-7d91-46c7-82dc-3cfc39f8e7b4" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_56aa87d9-1fc4-426f-8f44-d9b2720be704" xlink:to="loc_srt_MaximumMember_d373b4f8-7d91-46c7-82dc-3cfc39f8e7b4" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermDebtTypeAxis_f229c74d-2057-4e07-b41a-a59561a81a10" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShortTermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_100e514f-05e3-4a49-a6f4-0bf599d18c92" xlink:to="loc_us-gaap_ShortTermDebtTypeAxis_f229c74d-2057-4e07-b41a-a59561a81a10" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermDebtTypeDomain_f229c74d-2057-4e07-b41a-a59561a81a10_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShortTermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ShortTermDebtTypeAxis_f229c74d-2057-4e07-b41a-a59561a81a10" xlink:to="loc_us-gaap_ShortTermDebtTypeDomain_f229c74d-2057-4e07-b41a-a59561a81a10_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermDebtTypeDomain_4c3411ce-e924-4712-9d3f-b3eb159c486d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShortTermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ShortTermDebtTypeAxis_f229c74d-2057-4e07-b41a-a59561a81a10" xlink:to="loc_us-gaap_ShortTermDebtTypeDomain_4c3411ce-e924-4712-9d3f-b3eb159c486d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditMember_4e0419dd-9b0e-4b0f-b263-cda5606235c3" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LineOfCreditMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShortTermDebtTypeDomain_4c3411ce-e924-4712-9d3f-b3eb159c486d" xlink:to="loc_us-gaap_LineOfCreditMember_4e0419dd-9b0e-4b0f-b263-cda5606235c3" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionAxis_848fa753-c527-410a-ae56-1841fa830ab0" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_100e514f-05e3-4a49-a6f4-0bf599d18c92" xlink:to="loc_us-gaap_RelatedPartyTransactionAxis_848fa753-c527-410a-ae56-1841fa830ab0" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionDomain_848fa753-c527-410a-ae56-1841fa830ab0_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RelatedPartyTransactionAxis_848fa753-c527-410a-ae56-1841fa830ab0" xlink:to="loc_us-gaap_RelatedPartyTransactionDomain_848fa753-c527-410a-ae56-1841fa830ab0_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionDomain_39e08132-4bdb-4b8a-8306-9e5bd63ee24c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RelatedPartyTransactionAxis_848fa753-c527-410a-ae56-1841fa830ab0" xlink:to="loc_us-gaap_RelatedPartyTransactionDomain_39e08132-4bdb-4b8a-8306-9e5bd63ee24c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_GIBFacilityAgreementMember_fcd3ad1c-d997-4c2b-9c41-0dc7944748df" xlink:href="lcid-20240630.xsd#lcid_GIBFacilityAgreementMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionDomain_39e08132-4bdb-4b8a-8306-9e5bd63ee24c" xlink:to="loc_lcid_GIBFacilityAgreementMember_fcd3ad1c-d997-4c2b-9c41-0dc7944748df" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_34b13bb3-e223-467d-8b08-6ccf62e0f2cc" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_100e514f-05e3-4a49-a6f4-0bf599d18c92" xlink:to="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_34b13bb3-e223-467d-8b08-6ccf62e0f2cc" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_34b13bb3-e223-467d-8b08-6ccf62e0f2cc_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_34b13bb3-e223-467d-8b08-6ccf62e0f2cc" xlink:to="loc_us-gaap_RelatedPartyDomain_34b13bb3-e223-467d-8b08-6ccf62e0f2cc_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_9f4806e9-fa15-4889-bba5-dc88d38087b2" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_34b13bb3-e223-467d-8b08-6ccf62e0f2cc" xlink:to="loc_us-gaap_RelatedPartyDomain_9f4806e9-fa15-4889-bba5-dc88d38087b2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyMember_7829411f-1cfd-4bec-bf9c-e559993abb64" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain_9f4806e9-fa15-4889-bba5-dc88d38087b2" xlink:to="loc_us-gaap_RelatedPartyMember_7829411f-1cfd-4bec-bf9c-e559993abb64" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_LineOfCreditFacilityNumberOfFacilities_3e1d4b56-cf2c-438a-bb14-0922e7b526e7" xlink:href="lcid-20240630.xsd#lcid_LineOfCreditFacilityNumberOfFacilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_256cdb3d-1c34-4267-8655-780a5b254ee6" xlink:to="loc_lcid_LineOfCreditFacilityNumberOfFacilities_3e1d4b56-cf2c-438a-bb14-0922e7b526e7" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_38330c8a-bc3a-49d1-9465-00f4982e2df7" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_256cdb3d-1c34-4267-8655-780a5b254ee6" xlink:to="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_38330c8a-bc3a-49d1-9465-00f4982e2df7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTerm_78471cdc-5dee-49e6-b75b-929679e8b0c2" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentTerm"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_256cdb3d-1c34-4267-8655-780a5b254ee6" xlink:to="loc_us-gaap_DebtInstrumentTerm_78471cdc-5dee-49e6-b75b-929679e8b0c2" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_0b7fbe4e-41a9-4fc7-82d6-a24faf3d08b4" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentBasisSpreadOnVariableRate1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_256cdb3d-1c34-4267-8655-780a5b254ee6" xlink:to="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_0b7fbe4e-41a9-4fc7-82d6-a24faf3d08b4" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityCommitmentFeePercentage_1e4291a2-4b25-4ad0-bdfd-742493f5a7ba" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LineOfCreditFacilityCommitmentFeePercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_256cdb3d-1c34-4267-8655-780a5b254ee6" xlink:to="loc_us-gaap_LineOfCreditFacilityCommitmentFeePercentage_1e4291a2-4b25-4ad0-bdfd-742493f5a7ba" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermBorrowings_efa676b0-8bef-42ed-a645-8b6e94b6912b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShortTermBorrowings"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_256cdb3d-1c34-4267-8655-780a5b254ee6" xlink:to="loc_us-gaap_ShortTermBorrowings_efa676b0-8bef-42ed-a645-8b6e94b6912b" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtWeightedAverageInterestRate_0ee7724f-8f59-423c-899b-f2d2feb7c944" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtWeightedAverageInterestRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_256cdb3d-1c34-4267-8655-780a5b254ee6" xlink:to="loc_us-gaap_DebtWeightedAverageInterestRate_0ee7724f-8f59-423c-899b-f2d2feb7c944" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity_67a07124-a1fb-4241-9934-618ebaeeef8b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_256cdb3d-1c34-4267-8655-780a5b254ee6" xlink:to="loc_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity_67a07124-a1fb-4241-9934-618ebaeeef8b" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseDebt_29ed8bec-a27a-46e7-951e-d65fa3906d05" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_InterestExpenseDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_256cdb3d-1c34-4267-8655-780a5b254ee6" xlink:to="loc_us-gaap_InterestExpenseDebt_29ed8bec-a27a-46e7-951e-d65fa3906d05" xlink:type="arc" order="8"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://lucidmotors.com/role/DEBTABLCreditFacilityNarrativeDetails" xlink:type="simple" xlink:href="lcid-20240630.xsd#DEBTABLCreditFacilityNarrativeDetails"/>
  <link:definitionLink xlink:role="http://lucidmotors.com/role/DEBTABLCreditFacilityNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_023aca00-a2c8-4dee-a3c7-7b063113adc6" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable_726ba393-6ca1-42cc-8a6b-3f51a760f1c1" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DebtInstrumentLineItems_023aca00-a2c8-4dee-a3c7-7b063113adc6" xlink:to="loc_us-gaap_DebtInstrumentTable_726ba393-6ca1-42cc-8a6b-3f51a760f1c1" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityAxis_14012653-3173-4dc8-9405-1852d883ffc7" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CreditFacilityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_726ba393-6ca1-42cc-8a6b-3f51a760f1c1" xlink:to="loc_us-gaap_CreditFacilityAxis_14012653-3173-4dc8-9405-1852d883ffc7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_14012653-3173-4dc8-9405-1852d883ffc7_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_CreditFacilityAxis_14012653-3173-4dc8-9405-1852d883ffc7" xlink:to="loc_us-gaap_CreditFacilityDomain_14012653-3173-4dc8-9405-1852d883ffc7_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_a6c39cbf-0d0c-47ae-9227-5de72d528719" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_CreditFacilityAxis_14012653-3173-4dc8-9405-1852d883ffc7" xlink:to="loc_us-gaap_CreditFacilityDomain_a6c39cbf-0d0c-47ae-9227-5de72d528719" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevolvingCreditFacilityMember_9f850d25-8aeb-4470-b0d7-c9be9eb014df" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RevolvingCreditFacilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_a6c39cbf-0d0c-47ae-9227-5de72d528719" xlink:to="loc_us-gaap_RevolvingCreditFacilityMember_9f850d25-8aeb-4470-b0d7-c9be9eb014df" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LetterOfCreditMember_17621b9f-29f0-456e-920d-8e3d38f23343" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LetterOfCreditMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_a6c39cbf-0d0c-47ae-9227-5de72d528719" xlink:to="loc_us-gaap_LetterOfCreditMember_17621b9f-29f0-456e-920d-8e3d38f23343" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BridgeLoanMember_e64ccef2-9ba9-4929-ae13-4a7cc54c59cb" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BridgeLoanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_a6c39cbf-0d0c-47ae-9227-5de72d528719" xlink:to="loc_us-gaap_BridgeLoanMember_e64ccef2-9ba9-4929-ae13-4a7cc54c59cb" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_dbb2fb6c-48ea-4f8a-a114-5185e430a644" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_726ba393-6ca1-42cc-8a6b-3f51a760f1c1" xlink:to="loc_us-gaap_DebtInstrumentAxis_dbb2fb6c-48ea-4f8a-a114-5185e430a644" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_dbb2fb6c-48ea-4f8a-a114-5185e430a644_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_dbb2fb6c-48ea-4f8a-a114-5185e430a644" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_dbb2fb6c-48ea-4f8a-a114-5185e430a644_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_b77ebc4a-28f9-4264-a628-57f3cad084b7" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_dbb2fb6c-48ea-4f8a-a114-5185e430a644" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_b77ebc4a-28f9-4264-a628-57f3cad084b7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_ABLCreditFacilityMember_378e826b-80e7-4415-872d-5e449ee3783f" xlink:href="lcid-20240630.xsd#lcid_ABLCreditFacilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_b77ebc4a-28f9-4264-a628-57f3cad084b7" xlink:to="loc_lcid_ABLCreditFacilityMember_378e826b-80e7-4415-872d-5e449ee3783f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_bae18c4c-dce8-4cea-a09b-d7ab82fe888f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_726ba393-6ca1-42cc-8a6b-3f51a760f1c1" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_bae18c4c-dce8-4cea-a09b-d7ab82fe888f" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_bae18c4c-dce8-4cea-a09b-d7ab82fe888f_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_bae18c4c-dce8-4cea-a09b-d7ab82fe888f" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_bae18c4c-dce8-4cea-a09b-d7ab82fe888f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_5f33b005-6d83-4b23-b95b-030924eff718" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_bae18c4c-dce8-4cea-a09b-d7ab82fe888f" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_5f33b005-6d83-4b23-b95b-030924eff718" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditMember_3e72f793-4432-4dca-8388-65ff732ae36f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LineOfCreditMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_5f33b005-6d83-4b23-b95b-030924eff718" xlink:to="loc_us-gaap_LineOfCreditMember_3e72f793-4432-4dca-8388-65ff732ae36f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_1a242e74-f459-43ad-b857-e9b8d3fbe177" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_023aca00-a2c8-4dee-a3c7-7b063113adc6" xlink:to="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_1a242e74-f459-43ad-b857-e9b8d3fbe177" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_LineOfCreditFacilityAdditionalBorrowingCapacity_308b17c3-ae08-485d-a4b3-48690598a6a2" xlink:href="lcid-20240630.xsd#lcid_LineOfCreditFacilityAdditionalBorrowingCapacity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_023aca00-a2c8-4dee-a3c7-7b063113adc6" xlink:to="loc_lcid_LineOfCreditFacilityAdditionalBorrowingCapacity_308b17c3-ae08-485d-a4b3-48690598a6a2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage_204460f9-7918-4aac-9555-e279710a0445" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_023aca00-a2c8-4dee-a3c7-7b063113adc6" xlink:to="loc_us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage_204460f9-7918-4aac-9555-e279710a0445" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebt_8022fd05-806a-4944-b670-520514b1edf9" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongTermDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_023aca00-a2c8-4dee-a3c7-7b063113adc6" xlink:to="loc_us-gaap_LongTermDebt_8022fd05-806a-4944-b670-520514b1edf9" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LettersOfCreditOutstandingAmount_00c36a09-a430-4404-82a8-13ca0b7e4f06" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LettersOfCreditOutstandingAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_023aca00-a2c8-4dee-a3c7-7b063113adc6" xlink:to="loc_us-gaap_LettersOfCreditOutstandingAmount_00c36a09-a430-4404-82a8-13ca0b7e4f06" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity_0e6386f6-0d43-41d6-98a2-d7568241ac51" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_023aca00-a2c8-4dee-a3c7-7b063113adc6" xlink:to="loc_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity_0e6386f6-0d43-41d6-98a2-d7568241ac51" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_a77e1f89-5257-40f7-a71d-09903c6e3836" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_023aca00-a2c8-4dee-a3c7-7b063113adc6" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_a77e1f89-5257-40f7-a71d-09903c6e3836" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredFinanceCostsGross_aa7b6b7f-85d2-414c-8974-614e7bea0aca" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DeferredFinanceCostsGross"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_023aca00-a2c8-4dee-a3c7-7b063113adc6" xlink:to="loc_us-gaap_DeferredFinanceCostsGross_aa7b6b7f-85d2-414c-8974-614e7bea0aca" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_AmortizationOfDeferredIssuanceCostsAndCommitmentFee_851eb275-cb19-498b-87a1-1ce0b6865df4" xlink:href="lcid-20240630.xsd#lcid_AmortizationOfDeferredIssuanceCostsAndCommitmentFee"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_023aca00-a2c8-4dee-a3c7-7b063113adc6" xlink:to="loc_lcid_AmortizationOfDeferredIssuanceCostsAndCommitmentFee_851eb275-cb19-498b-87a1-1ce0b6865df4" xlink:type="arc" order="8"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://lucidmotors.com/role/COMMONSTOCKWARRANTLIABILITYNarrativeDetails" xlink:type="simple" xlink:href="lcid-20240630.xsd#COMMONSTOCKWARRANTLIABILITYNarrativeDetails"/>
  <link:definitionLink xlink:role="http://lucidmotors.com/role/COMMONSTOCKWARRANTLIABILITYNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightLineItems_23ffc261-55e0-43cf-8c69-7a6f00d21df1" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfWarrantOrRightLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightTable_c75c9848-8902-4bf2-b49f-633c8b39eaaa" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfWarrantOrRightTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_23ffc261-55e0-43cf-8c69-7a6f00d21df1" xlink:to="loc_us-gaap_ClassOfWarrantOrRightTable_c75c9848-8902-4bf2-b49f-633c8b39eaaa" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightAxis_d8b0643e-e225-455a-a947-c18c2cb5777a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfWarrantOrRightAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ClassOfWarrantOrRightTable_c75c9848-8902-4bf2-b49f-633c8b39eaaa" xlink:to="loc_us-gaap_ClassOfWarrantOrRightAxis_d8b0643e-e225-455a-a947-c18c2cb5777a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_d8b0643e-e225-455a-a947-c18c2cb5777a_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_d8b0643e-e225-455a-a947-c18c2cb5777a" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_d8b0643e-e225-455a-a947-c18c2cb5777a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_af348e48-80e3-42d8-99a6-355f841ea6ac" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_d8b0643e-e225-455a-a947-c18c2cb5777a" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_af348e48-80e3-42d8-99a6-355f841ea6ac" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_PrivatePlacementWarrantsMember_66b73fe8-29c7-4a75-8aa4-5fb60b1abadc" xlink:href="lcid-20240630.xsd#lcid_PrivatePlacementWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightDomain_af348e48-80e3-42d8-99a6-355f841ea6ac" xlink:to="loc_lcid_PrivatePlacementWarrantsMember_66b73fe8-29c7-4a75-8aa4-5fb60b1abadc" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightOutstanding_856d0563-a5df-4471-b22e-d5fc32d3d3ae" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfWarrantOrRightOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_23ffc261-55e0-43cf-8c69-7a6f00d21df1" xlink:to="loc_us-gaap_ClassOfWarrantOrRightOutstanding_856d0563-a5df-4471-b22e-d5fc32d3d3ae" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_b72569cb-8734-41df-8616-4fedb6a1ee01" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_23ffc261-55e0-43cf-8c69-7a6f00d21df1" xlink:to="loc_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_b72569cb-8734-41df-8616-4fedb6a1ee01" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WarrantsAndRightsOutstanding_cf5c8794-d6b7-4587-bbab-7c9a463da275" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_WarrantsAndRightsOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_23ffc261-55e0-43cf-8c69-7a6f00d21df1" xlink:to="loc_us-gaap_WarrantsAndRightsOutstanding_cf5c8794-d6b7-4587-bbab-7c9a463da275" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAdjustmentOfWarrants_7df9a52b-b4b5-40c3-8335-17a1c019387e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueAdjustmentOfWarrants"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_23ffc261-55e0-43cf-8c69-7a6f00d21df1" xlink:to="loc_us-gaap_FairValueAdjustmentOfWarrants_7df9a52b-b4b5-40c3-8335-17a1c019387e" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://lucidmotors.com/role/COMMONSTOCKWARRANTLIABILITYScheduleofFairValueofPrivatePlacementWarrantsDetails" xlink:type="simple" xlink:href="lcid-20240630.xsd#COMMONSTOCKWARRANTLIABILITYScheduleofFairValueofPrivatePlacementWarrantsDetails"/>
  <link:definitionLink xlink:role="http://lucidmotors.com/role/COMMONSTOCKWARRANTLIABILITYScheduleofFairValueofPrivatePlacementWarrantsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightLineItems_b23aab3d-5d4a-41a3-93f7-9bb20b355f79" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfWarrantOrRightLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightTable_fe971876-705e-4bad-aca0-aaa564266ac4" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfWarrantOrRightTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_b23aab3d-5d4a-41a3-93f7-9bb20b355f79" xlink:to="loc_us-gaap_ClassOfWarrantOrRightTable_fe971876-705e-4bad-aca0-aaa564266ac4" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightAxis_dae36b0e-6776-4fda-a386-26d877cc400e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfWarrantOrRightAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ClassOfWarrantOrRightTable_fe971876-705e-4bad-aca0-aaa564266ac4" xlink:to="loc_us-gaap_ClassOfWarrantOrRightAxis_dae36b0e-6776-4fda-a386-26d877cc400e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_dae36b0e-6776-4fda-a386-26d877cc400e_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_dae36b0e-6776-4fda-a386-26d877cc400e" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_dae36b0e-6776-4fda-a386-26d877cc400e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_694eefe9-fc67-4e13-ac1a-7be2b9f2e6fb" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_dae36b0e-6776-4fda-a386-26d877cc400e" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_694eefe9-fc67-4e13-ac1a-7be2b9f2e6fb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_PrivatePlacementWarrantsNonContingentMember_541dbfc8-7006-49a4-b090-a120e19783d5" xlink:href="lcid-20240630.xsd#lcid_PrivatePlacementWarrantsNonContingentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightDomain_694eefe9-fc67-4e13-ac1a-7be2b9f2e6fb" xlink:to="loc_lcid_PrivatePlacementWarrantsNonContingentMember_541dbfc8-7006-49a4-b090-a120e19783d5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_WarrantFairValuePerShare_a8ddb179-0a1f-4710-a56f-2d5a38dc7d0b" xlink:href="lcid-20240630.xsd#lcid_WarrantFairValuePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_b23aab3d-5d4a-41a3-93f7-9bb20b355f79" xlink:to="loc_lcid_WarrantFairValuePerShare_a8ddb179-0a1f-4710-a56f-2d5a38dc7d0b" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://lucidmotors.com/role/COMMONSTOCKWARRANTLIABILITYScheduleofLevel3FairValueInputsDetails" xlink:type="simple" xlink:href="lcid-20240630.xsd#COMMONSTOCKWARRANTLIABILITYScheduleofLevel3FairValueInputsDetails"/>
  <link:definitionLink xlink:role="http://lucidmotors.com/role/COMMONSTOCKWARRANTLIABILITYScheduleofLevel3FairValueInputsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightLineItems_9a696630-9cbe-410f-ab82-032d74e0c7a3" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfWarrantOrRightLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightTable_41490fdb-9b2a-4848-9674-75f2883055de" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfWarrantOrRightTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_9a696630-9cbe-410f-ab82-032d74e0c7a3" xlink:to="loc_us-gaap_ClassOfWarrantOrRightTable_41490fdb-9b2a-4848-9674-75f2883055de" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputTypeAxis_f16d9cc0-ff5c-493a-9a7b-543fae17ee8e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_MeasurementInputTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ClassOfWarrantOrRightTable_41490fdb-9b2a-4848-9674-75f2883055de" xlink:to="loc_us-gaap_MeasurementInputTypeAxis_f16d9cc0-ff5c-493a-9a7b-543fae17ee8e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputTypeDomain_f16d9cc0-ff5c-493a-9a7b-543fae17ee8e_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_MeasurementInputTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_MeasurementInputTypeAxis_f16d9cc0-ff5c-493a-9a7b-543fae17ee8e" xlink:to="loc_us-gaap_MeasurementInputTypeDomain_f16d9cc0-ff5c-493a-9a7b-543fae17ee8e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputTypeDomain_6d955ca0-31f1-48bc-bdb0-a9266960bb70" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_MeasurementInputTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_MeasurementInputTypeAxis_f16d9cc0-ff5c-493a-9a7b-543fae17ee8e" xlink:to="loc_us-gaap_MeasurementInputTypeDomain_6d955ca0-31f1-48bc-bdb0-a9266960bb70" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputOptionVolatilityMember_7c150a5d-c14c-4bd1-85de-9d37ffae1dad" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_MeasurementInputOptionVolatilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MeasurementInputTypeDomain_6d955ca0-31f1-48bc-bdb0-a9266960bb70" xlink:to="loc_us-gaap_MeasurementInputOptionVolatilityMember_7c150a5d-c14c-4bd1-85de-9d37ffae1dad" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputExpectedTermMember_b936ace8-1755-4a52-87af-6151a6a9938e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_MeasurementInputExpectedTermMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MeasurementInputTypeDomain_6d955ca0-31f1-48bc-bdb0-a9266960bb70" xlink:to="loc_us-gaap_MeasurementInputExpectedTermMember_b936ace8-1755-4a52-87af-6151a6a9938e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputRiskFreeInterestRateMember_7723e500-c42a-488e-9701-dd23fef6e5af" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_MeasurementInputRiskFreeInterestRateMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MeasurementInputTypeDomain_6d955ca0-31f1-48bc-bdb0-a9266960bb70" xlink:to="loc_us-gaap_MeasurementInputRiskFreeInterestRateMember_7723e500-c42a-488e-9701-dd23fef6e5af" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputExpectedDividendRateMember_5f6fa4b9-f8ee-4645-b98d-c3e2898a8306" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_MeasurementInputExpectedDividendRateMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MeasurementInputTypeDomain_6d955ca0-31f1-48bc-bdb0-a9266960bb70" xlink:to="loc_us-gaap_MeasurementInputExpectedDividendRateMember_5f6fa4b9-f8ee-4645-b98d-c3e2898a8306" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_2b479fec-5f93-48c8-b748-6b9ada29b2df" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ClassOfWarrantOrRightTable_41490fdb-9b2a-4848-9674-75f2883055de" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_2b479fec-5f93-48c8-b748-6b9ada29b2df" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_2b479fec-5f93-48c8-b748-6b9ada29b2df_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_2b479fec-5f93-48c8-b748-6b9ada29b2df" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_2b479fec-5f93-48c8-b748-6b9ada29b2df_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_aafc0558-fc57-4b6e-ae72-395e84fe068b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_2b479fec-5f93-48c8-b748-6b9ada29b2df" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_aafc0558-fc57-4b6e-ae72-395e84fe068b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel3Member_c0094c49-b564-45a4-bc41-d59bca041982" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueInputsLevel3Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_aafc0558-fc57-4b6e-ae72-395e84fe068b" xlink:to="loc_us-gaap_FairValueInputsLevel3Member_c0094c49-b564-45a4-bc41-d59bca041982" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WarrantsAndRightsOutstandingMeasurementInput_f8654ac9-27a5-4442-b5cb-167a77bdcf57" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_WarrantsAndRightsOutstandingMeasurementInput"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_9a696630-9cbe-410f-ab82-032d74e0c7a3" xlink:to="loc_us-gaap_WarrantsAndRightsOutstandingMeasurementInput_f8654ac9-27a5-4442-b5cb-167a77bdcf57" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WarrantsAndRightsOutstandingTerm_6633b2f8-83a4-400e-a8a8-192398ebbbec" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_WarrantsAndRightsOutstandingTerm"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_9a696630-9cbe-410f-ab82-032d74e0c7a3" xlink:to="loc_us-gaap_WarrantsAndRightsOutstandingTerm_6633b2f8-83a4-400e-a8a8-192398ebbbec" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://lucidmotors.com/role/REDEEMABLECONVERTIBLEPREFERREDSTOCKNarrativeDetails" xlink:type="simple" xlink:href="lcid-20240630.xsd#REDEEMABLECONVERTIBLEPREFERREDSTOCKNarrativeDetails"/>
  <link:definitionLink xlink:role="http://lucidmotors.com/role/REDEEMABLECONVERTIBLEPREFERREDSTOCKNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TemporaryEquityLineItems_aeaa9282-9e35-4a1e-a693-318d5e3ae70a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_TemporaryEquityLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TemporaryEquityByClassOfStockTable_02157a29-92ee-4425-8e3e-f536dee64603" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_TemporaryEquityByClassOfStockTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_TemporaryEquityLineItems_aeaa9282-9e35-4a1e-a693-318d5e3ae70a" xlink:to="loc_us-gaap_TemporaryEquityByClassOfStockTable_02157a29-92ee-4425-8e3e-f536dee64603" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CounterpartyNameAxis_af06da57-e64a-4e3f-87e1-fc4aa3e09e35" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_CounterpartyNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_TemporaryEquityByClassOfStockTable_02157a29-92ee-4425-8e3e-f536dee64603" xlink:to="loc_srt_CounterpartyNameAxis_af06da57-e64a-4e3f-87e1-fc4aa3e09e35" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_af06da57-e64a-4e3f-87e1-fc4aa3e09e35_default" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_CounterpartyNameAxis_af06da57-e64a-4e3f-87e1-fc4aa3e09e35" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_af06da57-e64a-4e3f-87e1-fc4aa3e09e35_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_90f2c1fb-61e6-40e5-a42a-c31a8663a6b3" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_CounterpartyNameAxis_af06da57-e64a-4e3f-87e1-fc4aa3e09e35" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_90f2c1fb-61e6-40e5-a42a-c31a8663a6b3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_AyarThirdInvestmentCompanyMember_88cc35c1-e908-4f30-af26-6e0f358d28cb" xlink:href="lcid-20240630.xsd#lcid_AyarThirdInvestmentCompanyMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RepurchaseAgreementCounterpartyNameDomain_90f2c1fb-61e6-40e5-a42a-c31a8663a6b3" xlink:to="loc_lcid_AyarThirdInvestmentCompanyMember_88cc35c1-e908-4f30-af26-6e0f358d28cb" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_b60c4e1d-e9ca-486c-99a4-b31083e9a131" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_TemporaryEquityByClassOfStockTable_02157a29-92ee-4425-8e3e-f536dee64603" xlink:to="loc_us-gaap_StatementClassOfStockAxis_b60c4e1d-e9ca-486c-99a4-b31083e9a131" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_b60c4e1d-e9ca-486c-99a4-b31083e9a131_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_b60c4e1d-e9ca-486c-99a4-b31083e9a131" xlink:to="loc_us-gaap_ClassOfStockDomain_b60c4e1d-e9ca-486c-99a4-b31083e9a131_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_5cbb9d93-8a13-448c-b050-a58401f968ee" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_b60c4e1d-e9ca-486c-99a4-b31083e9a131" xlink:to="loc_us-gaap_ClassOfStockDomain_5cbb9d93-8a13-448c-b050-a58401f968ee" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RedeemableConvertiblePreferredStockMember_eb3c0986-7977-4e85-bf5a-ea70b9b10e5e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RedeemableConvertiblePreferredStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_5cbb9d93-8a13-448c-b050-a58401f968ee" xlink:to="loc_us-gaap_RedeemableConvertiblePreferredStockMember_eb3c0986-7977-4e85-bf5a-ea70b9b10e5e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsidiarySaleOfStockAxis_84772752-0ce6-4f1a-bdc6-93925e7c7053" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsidiarySaleOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_TemporaryEquityByClassOfStockTable_02157a29-92ee-4425-8e3e-f536dee64603" xlink:to="loc_us-gaap_SubsidiarySaleOfStockAxis_84772752-0ce6-4f1a-bdc6-93925e7c7053" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNameOfTransactionDomain_84772752-0ce6-4f1a-bdc6-93925e7c7053_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SaleOfStockNameOfTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsidiarySaleOfStockAxis_84772752-0ce6-4f1a-bdc6-93925e7c7053" xlink:to="loc_us-gaap_SaleOfStockNameOfTransactionDomain_84772752-0ce6-4f1a-bdc6-93925e7c7053_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNameOfTransactionDomain_0acedf45-65bd-4359-9d4c-3c0a3ef5dc4f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SaleOfStockNameOfTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsidiarySaleOfStockAxis_84772752-0ce6-4f1a-bdc6-93925e7c7053" xlink:to="loc_us-gaap_SaleOfStockNameOfTransactionDomain_0acedf45-65bd-4359-9d4c-3c0a3ef5dc4f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_SeriesASubscriptionAgreementMember_aad93b81-b5a9-4853-9383-76554cffd0d7" xlink:href="lcid-20240630.xsd#lcid_SeriesASubscriptionAgreementMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SaleOfStockNameOfTransactionDomain_0acedf45-65bd-4359-9d4c-3c0a3ef5dc4f" xlink:to="loc_lcid_SeriesASubscriptionAgreementMember_aad93b81-b5a9-4853-9383-76554cffd0d7" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_9e4c17f4-2dc2-48d7-8d42-b92c596621b9" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TemporaryEquityLineItems_aeaa9282-9e35-4a1e-a693-318d5e3ae70a" xlink:to="loc_us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_9e4c17f4-2dc2-48d7-8d42-b92c596621b9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_SaleOfStockConsiderationToReceiveOnTransaction_2fef68df-aa33-48df-836b-6daa5e24122c" xlink:href="lcid-20240630.xsd#lcid_SaleOfStockConsiderationToReceiveOnTransaction"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TemporaryEquityLineItems_aeaa9282-9e35-4a1e-a693-318d5e3ae70a" xlink:to="loc_lcid_SaleOfStockConsiderationToReceiveOnTransaction_2fef68df-aa33-48df-836b-6daa5e24122c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_SaleOfStockGrossConsiderationReceivedOnTransaction_d0ae59ed-77b3-4142-81bf-e078bc884f65" xlink:href="lcid-20240630.xsd#lcid_SaleOfStockGrossConsiderationReceivedOnTransaction"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TemporaryEquityLineItems_aeaa9282-9e35-4a1e-a693-318d5e3ae70a" xlink:to="loc_lcid_SaleOfStockGrossConsiderationReceivedOnTransaction_d0ae59ed-77b3-4142-81bf-e078bc884f65" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_TemporaryEquityInitialValuePerShare_10cf70e5-a890-4567-a409-092b75c5702c" xlink:href="lcid-20240630.xsd#lcid_TemporaryEquityInitialValuePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TemporaryEquityLineItems_aeaa9282-9e35-4a1e-a693-318d5e3ae70a" xlink:to="loc_lcid_TemporaryEquityInitialValuePerShare_10cf70e5-a890-4567-a409-092b75c5702c" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_TemporaryEquityDividendRatePercentage_5a3715ed-7d00-4ccd-ad37-090a6c0972b3" xlink:href="lcid-20240630.xsd#lcid_TemporaryEquityDividendRatePercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TemporaryEquityLineItems_aeaa9282-9e35-4a1e-a693-318d5e3ae70a" xlink:to="loc_lcid_TemporaryEquityDividendRatePercentage_5a3715ed-7d00-4ccd-ad37-090a6c0972b3" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TemporaryEquityLiquidationPreference_089d085b-d4e3-4187-9628-3503636af109" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_TemporaryEquityLiquidationPreference"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TemporaryEquityLineItems_aeaa9282-9e35-4a1e-a693-318d5e3ae70a" xlink:to="loc_us-gaap_TemporaryEquityLiquidationPreference_089d085b-d4e3-4187-9628-3503636af109" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_TemporaryEquityVotingCapDenominator_f57872c4-072f-4f60-8015-99f85e1c9938" xlink:href="lcid-20240630.xsd#lcid_TemporaryEquityVotingCapDenominator"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TemporaryEquityLineItems_aeaa9282-9e35-4a1e-a693-318d5e3ae70a" xlink:to="loc_lcid_TemporaryEquityVotingCapDenominator_f57872c4-072f-4f60-8015-99f85e1c9938" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_TemporaryEquityThresholdPercentageOfSharesIssuedOnInitialDateOutstanding_eead3b1c-f40b-448e-ac38-0b02636b9ced" xlink:href="lcid-20240630.xsd#lcid_TemporaryEquityThresholdPercentageOfSharesIssuedOnInitialDateOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TemporaryEquityLineItems_aeaa9282-9e35-4a1e-a693-318d5e3ae70a" xlink:to="loc_lcid_TemporaryEquityThresholdPercentageOfSharesIssuedOnInitialDateOutstanding_eead3b1c-f40b-448e-ac38-0b02636b9ced" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_TemporaryEquityThresholdPercentageOfSharesOwned_c15eac5d-25d2-4e32-a9a0-4b72cbe5951d" xlink:href="lcid-20240630.xsd#lcid_TemporaryEquityThresholdPercentageOfSharesOwned"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TemporaryEquityLineItems_aeaa9282-9e35-4a1e-a693-318d5e3ae70a" xlink:to="loc_lcid_TemporaryEquityThresholdPercentageOfSharesOwned_c15eac5d-25d2-4e32-a9a0-4b72cbe5951d" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TemporaryEquityRedemptionPricePerShare_66bc413c-63a9-4942-8d65-641bcdda2828" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_TemporaryEquityRedemptionPricePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TemporaryEquityLineItems_aeaa9282-9e35-4a1e-a693-318d5e3ae70a" xlink:to="loc_us-gaap_TemporaryEquityRedemptionPricePerShare_66bc413c-63a9-4942-8d65-641bcdda2828" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_ConvertiblePreferredStockInitialConversionPrice_c259d99e-cf72-4066-aa05-f481acba5786" xlink:href="lcid-20240630.xsd#lcid_ConvertiblePreferredStockInitialConversionPrice"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TemporaryEquityLineItems_aeaa9282-9e35-4a1e-a693-318d5e3ae70a" xlink:to="loc_lcid_ConvertiblePreferredStockInitialConversionPrice_c259d99e-cf72-4066-aa05-f481acba5786" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_TemporaryEquityConvertibleThresholdPercentageOfStockPriceTrigger_fc01db0c-d75d-4e5f-9653-dec278d3d658" xlink:href="lcid-20240630.xsd#lcid_TemporaryEquityConvertibleThresholdPercentageOfStockPriceTrigger"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TemporaryEquityLineItems_aeaa9282-9e35-4a1e-a693-318d5e3ae70a" xlink:to="loc_lcid_TemporaryEquityConvertibleThresholdPercentageOfStockPriceTrigger_fc01db0c-d75d-4e5f-9653-dec278d3d658" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_TemporaryEquityConvertibleThresholdTradingDays_2f33d0c0-8509-49af-a05b-d9191b280316" xlink:href="lcid-20240630.xsd#lcid_TemporaryEquityConvertibleThresholdTradingDays"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TemporaryEquityLineItems_aeaa9282-9e35-4a1e-a693-318d5e3ae70a" xlink:to="loc_lcid_TemporaryEquityConvertibleThresholdTradingDays_2f33d0c0-8509-49af-a05b-d9191b280316" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_TemporaryEquityConvertibleThresholdConsecutiveTradingDays_6822cdd6-844a-4dc2-b0e4-c24f2b631d87" xlink:href="lcid-20240630.xsd#lcid_TemporaryEquityConvertibleThresholdConsecutiveTradingDays"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TemporaryEquityLineItems_aeaa9282-9e35-4a1e-a693-318d5e3ae70a" xlink:to="loc_lcid_TemporaryEquityConvertibleThresholdConsecutiveTradingDays_6822cdd6-844a-4dc2-b0e4-c24f2b631d87" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_TemporaryEquityConvertibleLiquidityConditionsSatisfiedThresholdTradingDays_6cce849f-eeca-4727-aa2f-7ed00f6f56d9" xlink:href="lcid-20240630.xsd#lcid_TemporaryEquityConvertibleLiquidityConditionsSatisfiedThresholdTradingDays"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TemporaryEquityLineItems_aeaa9282-9e35-4a1e-a693-318d5e3ae70a" xlink:to="loc_lcid_TemporaryEquityConvertibleLiquidityConditionsSatisfiedThresholdTradingDays_6cce849f-eeca-4727-aa2f-7ed00f6f56d9" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_TemporaryEquityConvertibleAverageDailyVWAPPeriod_a53992ea-ae4f-4eee-8a7a-80538d8ba8f5" xlink:href="lcid-20240630.xsd#lcid_TemporaryEquityConvertibleAverageDailyVWAPPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TemporaryEquityLineItems_aeaa9282-9e35-4a1e-a693-318d5e3ae70a" xlink:to="loc_lcid_TemporaryEquityConvertibleAverageDailyVWAPPeriod_a53992ea-ae4f-4eee-8a7a-80538d8ba8f5" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_TemporaryEquityConvertibleOptionalRedemptionAverageDailyVWAPPeriod_52899b79-8dbd-43c9-ade9-d8df8f95c0a0" xlink:href="lcid-20240630.xsd#lcid_TemporaryEquityConvertibleOptionalRedemptionAverageDailyVWAPPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TemporaryEquityLineItems_aeaa9282-9e35-4a1e-a693-318d5e3ae70a" xlink:to="loc_lcid_TemporaryEquityConvertibleOptionalRedemptionAverageDailyVWAPPeriod_52899b79-8dbd-43c9-ade9-d8df8f95c0a0" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_ConvertiblePreferredStockCallableTerm_698ce387-7592-45e1-9279-f3d7c7d4b81a" xlink:href="lcid-20240630.xsd#lcid_ConvertiblePreferredStockCallableTerm"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TemporaryEquityLineItems_aeaa9282-9e35-4a1e-a693-318d5e3ae70a" xlink:to="loc_lcid_ConvertiblePreferredStockCallableTerm_698ce387-7592-45e1-9279-f3d7c7d4b81a" xlink:type="arc" order="17"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_StockIssuanceCosts_956253bb-1280-48cf-8863-1f4e0501faf1" xlink:href="lcid-20240630.xsd#lcid_StockIssuanceCosts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TemporaryEquityLineItems_aeaa9282-9e35-4a1e-a693-318d5e3ae70a" xlink:to="loc_lcid_StockIssuanceCosts_956253bb-1280-48cf-8863-1f4e0501faf1" xlink:type="arc" order="18"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeLiabilitiesNoncurrent_bd3dcb2f-af8f-4ff7-ad2f-296da74acea0" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DerivativeLiabilitiesNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TemporaryEquityLineItems_aeaa9282-9e35-4a1e-a693-318d5e3ae70a" xlink:to="loc_us-gaap_DerivativeLiabilitiesNoncurrent_bd3dcb2f-af8f-4ff7-ad2f-296da74acea0" xlink:type="arc" order="19"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockAccretionOfRedemptionDiscount_7372f71c-9c46-4ffb-9eca-4265dfef9a57" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PreferredStockAccretionOfRedemptionDiscount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TemporaryEquityLineItems_aeaa9282-9e35-4a1e-a693-318d5e3ae70a" xlink:to="loc_us-gaap_PreferredStockAccretionOfRedemptionDiscount_7372f71c-9c46-4ffb-9eca-4265dfef9a57" xlink:type="arc" order="20"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TemporaryEquityCarryingAmountAttributableToParent_a9aa1351-0e9d-4ff1-8b9a-b1b1b46fa4c7" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_TemporaryEquityCarryingAmountAttributableToParent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TemporaryEquityLineItems_aeaa9282-9e35-4a1e-a693-318d5e3ae70a" xlink:to="loc_us-gaap_TemporaryEquityCarryingAmountAttributableToParent_a9aa1351-0e9d-4ff1-8b9a-b1b1b46fa4c7" xlink:type="arc" order="21"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeGainLossOnDerivativeNet_e25f04cb-13d2-4af5-9ae0-17e721049cc8" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DerivativeGainLossOnDerivativeNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TemporaryEquityLineItems_aeaa9282-9e35-4a1e-a693-318d5e3ae70a" xlink:to="loc_us-gaap_DerivativeGainLossOnDerivativeNet_e25f04cb-13d2-4af5-9ae0-17e721049cc8" xlink:type="arc" order="22"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://lucidmotors.com/role/REDEEMABLECONVERTIBLEPREFERREDSTOCKScheduleofSignificantInputsUsedintheValuationoftheDerivativeLiabilityDetails" xlink:type="simple" xlink:href="lcid-20240630.xsd#REDEEMABLECONVERTIBLEPREFERREDSTOCKScheduleofSignificantInputsUsedintheValuationoftheDerivativeLiabilityDetails"/>
  <link:definitionLink xlink:role="http://lucidmotors.com/role/REDEEMABLECONVERTIBLEPREFERREDSTOCKScheduleofSignificantInputsUsedintheValuationoftheDerivativeLiabilityDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeLineItems_d6bbbbea-c16b-4ae1-a327-05a7dbfb4d4b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DerivativeLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeTable_647db71a-1f92-49be-8edf-8c10fa3b506d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DerivativeTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DerivativeLineItems_d6bbbbea-c16b-4ae1-a327-05a7dbfb4d4b" xlink:to="loc_us-gaap_DerivativeTable_647db71a-1f92-49be-8edf-8c10fa3b506d" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputTypeAxis_9d15a0f3-008a-45c6-b925-a037013f3e53" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_MeasurementInputTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_647db71a-1f92-49be-8edf-8c10fa3b506d" xlink:to="loc_us-gaap_MeasurementInputTypeAxis_9d15a0f3-008a-45c6-b925-a037013f3e53" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputTypeDomain_9d15a0f3-008a-45c6-b925-a037013f3e53_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_MeasurementInputTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_MeasurementInputTypeAxis_9d15a0f3-008a-45c6-b925-a037013f3e53" xlink:to="loc_us-gaap_MeasurementInputTypeDomain_9d15a0f3-008a-45c6-b925-a037013f3e53_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputTypeDomain_7befe06f-e06a-46c2-957f-8004b9610d1c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_MeasurementInputTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_MeasurementInputTypeAxis_9d15a0f3-008a-45c6-b925-a037013f3e53" xlink:to="loc_us-gaap_MeasurementInputTypeDomain_7befe06f-e06a-46c2-957f-8004b9610d1c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputOptionVolatilityMember_177d9f1f-8bce-42be-8972-3f6b30a4a48d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_MeasurementInputOptionVolatilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MeasurementInputTypeDomain_7befe06f-e06a-46c2-957f-8004b9610d1c" xlink:to="loc_us-gaap_MeasurementInputOptionVolatilityMember_177d9f1f-8bce-42be-8972-3f6b30a4a48d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputCreditSpreadMember_e5503959-7527-48bd-8101-c98900bad9de" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_MeasurementInputCreditSpreadMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MeasurementInputTypeDomain_7befe06f-e06a-46c2-957f-8004b9610d1c" xlink:to="loc_us-gaap_MeasurementInputCreditSpreadMember_e5503959-7527-48bd-8101-c98900bad9de" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputSharePriceMember_bd0e6255-e867-4c41-80c4-d953fbe95fab" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_MeasurementInputSharePriceMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MeasurementInputTypeDomain_7befe06f-e06a-46c2-957f-8004b9610d1c" xlink:to="loc_us-gaap_MeasurementInputSharePriceMember_bd0e6255-e867-4c41-80c4-d953fbe95fab" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputRiskFreeInterestRateMember_5d4793ce-08e9-4aaa-ac33-75e2b4785abf" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_MeasurementInputRiskFreeInterestRateMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MeasurementInputTypeDomain_7befe06f-e06a-46c2-957f-8004b9610d1c" xlink:to="loc_us-gaap_MeasurementInputRiskFreeInterestRateMember_5d4793ce-08e9-4aaa-ac33-75e2b4785abf" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_3ade918b-49ef-429d-9cde-654f4c36a98d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_647db71a-1f92-49be-8edf-8c10fa3b506d" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_3ade918b-49ef-429d-9cde-654f4c36a98d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_3ade918b-49ef-429d-9cde-654f4c36a98d_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_3ade918b-49ef-429d-9cde-654f4c36a98d" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_3ade918b-49ef-429d-9cde-654f4c36a98d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_a3f3eddb-576b-4424-ac38-d9c4b40ec596" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_3ade918b-49ef-429d-9cde-654f4c36a98d" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_a3f3eddb-576b-4424-ac38-d9c4b40ec596" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel3Member_12f4f49f-78c7-46c9-ab36-ac19d5f6e753" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueInputsLevel3Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_a3f3eddb-576b-4424-ac38-d9c4b40ec596" xlink:to="loc_us-gaap_FairValueInputsLevel3Member_12f4f49f-78c7-46c9-ab36-ac19d5f6e753" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CounterpartyNameAxis_ece05824-cbdd-44a4-bb43-d97c3210a24e" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_CounterpartyNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_647db71a-1f92-49be-8edf-8c10fa3b506d" xlink:to="loc_srt_CounterpartyNameAxis_ece05824-cbdd-44a4-bb43-d97c3210a24e" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_ece05824-cbdd-44a4-bb43-d97c3210a24e_default" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_CounterpartyNameAxis_ece05824-cbdd-44a4-bb43-d97c3210a24e" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_ece05824-cbdd-44a4-bb43-d97c3210a24e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_a6630829-1d39-45d2-b7be-b3b5c97c8463" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_CounterpartyNameAxis_ece05824-cbdd-44a4-bb43-d97c3210a24e" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_a6630829-1d39-45d2-b7be-b3b5c97c8463" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_AyarThirdInvestmentCompanyMember_7a535d7e-3260-440a-b842-fa9aec17aac8" xlink:href="lcid-20240630.xsd#lcid_AyarThirdInvestmentCompanyMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RepurchaseAgreementCounterpartyNameDomain_a6630829-1d39-45d2-b7be-b3b5c97c8463" xlink:to="loc_lcid_AyarThirdInvestmentCompanyMember_7a535d7e-3260-440a-b842-fa9aec17aac8" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_0ad96b14-90b3-4d4b-ae55-34aaff40909c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_647db71a-1f92-49be-8edf-8c10fa3b506d" xlink:to="loc_us-gaap_StatementClassOfStockAxis_0ad96b14-90b3-4d4b-ae55-34aaff40909c" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_0ad96b14-90b3-4d4b-ae55-34aaff40909c_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_0ad96b14-90b3-4d4b-ae55-34aaff40909c" xlink:to="loc_us-gaap_ClassOfStockDomain_0ad96b14-90b3-4d4b-ae55-34aaff40909c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_5346c691-ff6a-4aa4-baa4-06f6cf0bd340" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_0ad96b14-90b3-4d4b-ae55-34aaff40909c" xlink:to="loc_us-gaap_ClassOfStockDomain_5346c691-ff6a-4aa4-baa4-06f6cf0bd340" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RedeemableConvertiblePreferredStockMember_ceab5a00-b7ea-4bcf-9d09-fcb2ca857cfe" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RedeemableConvertiblePreferredStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_5346c691-ff6a-4aa4-baa4-06f6cf0bd340" xlink:to="loc_us-gaap_RedeemableConvertiblePreferredStockMember_ceab5a00-b7ea-4bcf-9d09-fcb2ca857cfe" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsidiarySaleOfStockAxis_0c9dbd89-08bd-4276-9a5b-ec6d7763980f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsidiarySaleOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_647db71a-1f92-49be-8edf-8c10fa3b506d" xlink:to="loc_us-gaap_SubsidiarySaleOfStockAxis_0c9dbd89-08bd-4276-9a5b-ec6d7763980f" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNameOfTransactionDomain_0c9dbd89-08bd-4276-9a5b-ec6d7763980f_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SaleOfStockNameOfTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsidiarySaleOfStockAxis_0c9dbd89-08bd-4276-9a5b-ec6d7763980f" xlink:to="loc_us-gaap_SaleOfStockNameOfTransactionDomain_0c9dbd89-08bd-4276-9a5b-ec6d7763980f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNameOfTransactionDomain_93d484d5-f7da-402e-aba7-7a1ec667fadf" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SaleOfStockNameOfTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsidiarySaleOfStockAxis_0c9dbd89-08bd-4276-9a5b-ec6d7763980f" xlink:to="loc_us-gaap_SaleOfStockNameOfTransactionDomain_93d484d5-f7da-402e-aba7-7a1ec667fadf" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_SeriesASubscriptionAgreementMember_1b80e4f8-5409-4e52-a9a1-cbe75a5d9f52" xlink:href="lcid-20240630.xsd#lcid_SeriesASubscriptionAgreementMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SaleOfStockNameOfTransactionDomain_93d484d5-f7da-402e-aba7-7a1ec667fadf" xlink:to="loc_lcid_SeriesASubscriptionAgreementMember_1b80e4f8-5409-4e52-a9a1-cbe75a5d9f52" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeLiabilityMeasurementInput_3acc6d58-83bc-4342-899b-41e22521ec44" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DerivativeLiabilityMeasurementInput"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_d6bbbbea-c16b-4ae1-a327-05a7dbfb4d4b" xlink:to="loc_us-gaap_DerivativeLiabilityMeasurementInput_3acc6d58-83bc-4342-899b-41e22521ec44" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_DerivativeLiabilityMeasurementInputExpectedTerm_e6e3df42-2f06-467c-8a86-dca6aee663c2" xlink:href="lcid-20240630.xsd#lcid_DerivativeLiabilityMeasurementInputExpectedTerm"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_d6bbbbea-c16b-4ae1-a327-05a7dbfb4d4b" xlink:to="loc_lcid_DerivativeLiabilityMeasurementInputExpectedTerm_e6e3df42-2f06-467c-8a86-dca6aee663c2" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://lucidmotors.com/role/STOCKHOLDERSEQUITYNarrativeDetails" xlink:type="simple" xlink:href="lcid-20240630.xsd#STOCKHOLDERSEQUITYNarrativeDetails"/>
  <link:definitionLink xlink:role="http://lucidmotors.com/role/STOCKHOLDERSEQUITYNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockLineItems_a0520f36-0fb2-4cf4-87b3-bbd8b1386b8e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfStockLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfStockByClassTable_8e9cd28c-d2eb-4082-a931-2ebc7878d3dc" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfStockByClassTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ClassOfStockLineItems_a0520f36-0fb2-4cf4-87b3-bbd8b1386b8e" xlink:to="loc_us-gaap_ScheduleOfStockByClassTable_8e9cd28c-d2eb-4082-a931-2ebc7878d3dc" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CounterpartyNameAxis_62041c0c-5559-4866-8257-7aeb973fda60" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_CounterpartyNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_8e9cd28c-d2eb-4082-a931-2ebc7878d3dc" xlink:to="loc_srt_CounterpartyNameAxis_62041c0c-5559-4866-8257-7aeb973fda60" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_62041c0c-5559-4866-8257-7aeb973fda60_default" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_CounterpartyNameAxis_62041c0c-5559-4866-8257-7aeb973fda60" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_62041c0c-5559-4866-8257-7aeb973fda60_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_1e1623b6-b57f-4e6a-85c0-876a58d2bbaf" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_CounterpartyNameAxis_62041c0c-5559-4866-8257-7aeb973fda60" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_1e1623b6-b57f-4e6a-85c0-876a58d2bbaf" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_EmployeesMember_5b6391d1-68a6-4382-89a9-5f21616fa108" xlink:href="lcid-20240630.xsd#lcid_EmployeesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RepurchaseAgreementCounterpartyNameDomain_1e1623b6-b57f-4e6a-85c0-876a58d2bbaf" xlink:to="loc_lcid_EmployeesMember_5b6391d1-68a6-4382-89a9-5f21616fa108" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_BoardOfDirectorsOfAtievaMember_8daa588f-c3ca-4b1f-bfee-b149f19c54fe" xlink:href="lcid-20240630.xsd#lcid_BoardOfDirectorsOfAtievaMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RepurchaseAgreementCounterpartyNameDomain_1e1623b6-b57f-4e6a-85c0-876a58d2bbaf" xlink:to="loc_lcid_BoardOfDirectorsOfAtievaMember_8daa588f-c3ca-4b1f-bfee-b149f19c54fe" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockSharesAcquired_40d645d5-0754-4dc2-9b7f-9b897f9f1007" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_TreasuryStockSharesAcquired"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_a0520f36-0fb2-4cf4-87b3-bbd8b1386b8e" xlink:to="loc_us-gaap_TreasuryStockSharesAcquired_40d645d5-0754-4dc2-9b7f-9b897f9f1007" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockAcquiredAverageCostPerShare_b4bfe20f-92a7-48b1-9246-db8e6fedf7e9" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_TreasuryStockAcquiredAverageCostPerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_a0520f36-0fb2-4cf4-87b3-bbd8b1386b8e" xlink:to="loc_us-gaap_TreasuryStockAcquiredAverageCostPerShare_b4bfe20f-92a7-48b1-9246-db8e6fedf7e9" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://lucidmotors.com/role/STOCKHOLDERSEQUITYScheduleofCommonStockReservedforFutureIssuancesDetails" xlink:type="simple" xlink:href="lcid-20240630.xsd#STOCKHOLDERSEQUITYScheduleofCommonStockReservedforFutureIssuancesDetails"/>
  <link:definitionLink xlink:role="http://lucidmotors.com/role/STOCKHOLDERSEQUITYScheduleofCommonStockReservedforFutureIssuancesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockLineItems_78cc47e7-a007-4153-9230-4d28f8a352c5" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfStockLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfStockByClassTable_b7363c6e-c191-4709-ae78-d8d17e19dc96" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfStockByClassTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ClassOfStockLineItems_78cc47e7-a007-4153-9230-4d28f8a352c5" xlink:to="loc_us-gaap_ScheduleOfStockByClassTable_b7363c6e-c191-4709-ae78-d8d17e19dc96" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_8ee41e90-30b7-43d9-afee-147f8b2363cf" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfStockByClassTable_b7363c6e-c191-4709-ae78-d8d17e19dc96" xlink:to="loc_us-gaap_StatementClassOfStockAxis_8ee41e90-30b7-43d9-afee-147f8b2363cf" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_8ee41e90-30b7-43d9-afee-147f8b2363cf_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_8ee41e90-30b7-43d9-afee-147f8b2363cf" xlink:to="loc_us-gaap_ClassOfStockDomain_8ee41e90-30b7-43d9-afee-147f8b2363cf_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_9589e755-1963-4a81-9dc1-9df6eb6dc92f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_8ee41e90-30b7-43d9-afee-147f8b2363cf" xlink:to="loc_us-gaap_ClassOfStockDomain_9589e755-1963-4a81-9dc1-9df6eb6dc92f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_PrivateWarrantsToPurchaseCommonStockMember_b0fb01a3-050a-4f79-b39a-bf0c3e50359a" xlink:href="lcid-20240630.xsd#lcid_PrivateWarrantsToPurchaseCommonStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_9589e755-1963-4a81-9dc1-9df6eb6dc92f" xlink:to="loc_lcid_PrivateWarrantsToPurchaseCommonStockMember_b0fb01a3-050a-4f79-b39a-bf0c3e50359a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockOptionMember_b6c1cb59-9b25-45e6-b61f-f6fc4880f3bc" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockOptionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_9589e755-1963-4a81-9dc1-9df6eb6dc92f" xlink:to="loc_us-gaap_StockOptionMember_b6c1cb59-9b25-45e6-b61f-f6fc4880f3bc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember_93a084a4-db16-4da8-a64c-742511260b4b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RestrictedStockUnitsRSUMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_9589e755-1963-4a81-9dc1-9df6eb6dc92f" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember_93a084a4-db16-4da8-a64c-742511260b4b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_SharesAvailableForFutureGrantMember_fd2949b8-1a29-4be8-81d5-0214e5c1f3cf" xlink:href="lcid-20240630.xsd#lcid_SharesAvailableForFutureGrantMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_9589e755-1963-4a81-9dc1-9df6eb6dc92f" xlink:to="loc_lcid_SharesAvailableForFutureGrantMember_fd2949b8-1a29-4be8-81d5-0214e5c1f3cf" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_IfConvertedCommonSharesFromConvertibleNotesMember_68cdd150-affb-4746-965c-c2db9d7d3af6" xlink:href="lcid-20240630.xsd#lcid_IfConvertedCommonSharesFromConvertibleNotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_9589e755-1963-4a81-9dc1-9df6eb6dc92f" xlink:to="loc_lcid_IfConvertedCommonSharesFromConvertibleNotesMember_68cdd150-affb-4746-965c-c2db9d7d3af6" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_IfConvertedCommonSharesFromSeriesARedeemableConvertiblePreferredStockMember_e94e6bc1-27b6-4ad0-b4e9-fc2adf4351dc" xlink:href="lcid-20240630.xsd#lcid_IfConvertedCommonSharesFromSeriesARedeemableConvertiblePreferredStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_9589e755-1963-4a81-9dc1-9df6eb6dc92f" xlink:to="loc_lcid_IfConvertedCommonSharesFromSeriesARedeemableConvertiblePreferredStockMember_e94e6bc1-27b6-4ad0-b4e9-fc2adf4351dc" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockCapitalSharesReservedForFutureIssuance_15b13b96-2b3c-44cc-8275-3e5ec2f21160" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonStockCapitalSharesReservedForFutureIssuance"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockLineItems_78cc47e7-a007-4153-9230-4d28f8a352c5" xlink:to="loc_us-gaap_CommonStockCapitalSharesReservedForFutureIssuance_15b13b96-2b3c-44cc-8275-3e5ec2f21160" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://lucidmotors.com/role/STOCKBASEDAWARDSNarrativeDetails" xlink:type="simple" xlink:href="lcid-20240630.xsd#STOCKBASEDAWARDSNarrativeDetails"/>
  <link:definitionLink xlink:role="http://lucidmotors.com/role/STOCKBASEDAWARDSNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_7d7b2003-9973-4587-8744-b37910bc3e3b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_3ef8e564-2a51-4b81-98ac-cd8276150374" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_7d7b2003-9973-4587-8744-b37910bc3e3b" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_3ef8e564-2a51-4b81-98ac-cd8276150374" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_d6888304-c3fa-47cc-b546-7aaffb9371e2" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_3ef8e564-2a51-4b81-98ac-cd8276150374" xlink:to="loc_us-gaap_AwardTypeAxis_d6888304-c3fa-47cc-b546-7aaffb9371e2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_d6888304-c3fa-47cc-b546-7aaffb9371e2_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_d6888304-c3fa-47cc-b546-7aaffb9371e2" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_d6888304-c3fa-47cc-b546-7aaffb9371e2_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_b9893e5d-fbe8-4c10-9795-6176646c3e53" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_d6888304-c3fa-47cc-b546-7aaffb9371e2" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_b9893e5d-fbe8-4c10-9795-6176646c3e53" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeStockOptionMember_47b3724c-5f6f-4888-97db-c6981452d5e2" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EmployeeStockOptionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_b9893e5d-fbe8-4c10-9795-6176646c3e53" xlink:to="loc_us-gaap_EmployeeStockOptionMember_47b3724c-5f6f-4888-97db-c6981452d5e2" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_TimeBasedRestrictedStockUnitsMember_a10625a2-a4f7-4518-a0ee-bc4697c2c5b8" xlink:href="lcid-20240630.xsd#lcid_TimeBasedRestrictedStockUnitsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_b9893e5d-fbe8-4c10-9795-6176646c3e53" xlink:to="loc_lcid_TimeBasedRestrictedStockUnitsMember_a10625a2-a4f7-4518-a0ee-bc4697c2c5b8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_PerformanceBasedRestrictedStockUnitsMember_53323ad9-7133-4a46-b7c4-c86e385ef4aa" xlink:href="lcid-20240630.xsd#lcid_PerformanceBasedRestrictedStockUnitsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_b9893e5d-fbe8-4c10-9795-6176646c3e53" xlink:to="loc_lcid_PerformanceBasedRestrictedStockUnitsMember_53323ad9-7133-4a46-b7c4-c86e385ef4aa" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_TitleOfIndividualAxis_afe9f316-7f3c-49ba-88cf-0e4d4c422078" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_TitleOfIndividualAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_3ef8e564-2a51-4b81-98ac-cd8276150374" xlink:to="loc_srt_TitleOfIndividualAxis_afe9f316-7f3c-49ba-88cf-0e4d4c422078" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_afe9f316-7f3c-49ba-88cf-0e4d4c422078_default" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_TitleOfIndividualWithRelationshipToEntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_TitleOfIndividualAxis_afe9f316-7f3c-49ba-88cf-0e4d4c422078" xlink:to="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_afe9f316-7f3c-49ba-88cf-0e4d4c422078_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_4ea7c783-38a4-475a-977d-c434f14f3259" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_TitleOfIndividualWithRelationshipToEntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_TitleOfIndividualAxis_afe9f316-7f3c-49ba-88cf-0e4d4c422078" xlink:to="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_4ea7c783-38a4-475a-977d-c434f14f3259" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ChiefExecutiveOfficerMember_efaac4d9-04a3-42c1-9cfd-41105736bb03" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_ChiefExecutiveOfficerMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_4ea7c783-38a4-475a-977d-c434f14f3259" xlink:to="loc_srt_ChiefExecutiveOfficerMember_efaac4d9-04a3-42c1-9cfd-41105736bb03" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VestingAxis_7bcc4615-2141-4079-b8d2-01c67a74199b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_VestingAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_3ef8e564-2a51-4b81-98ac-cd8276150374" xlink:to="loc_us-gaap_VestingAxis_7bcc4615-2141-4079-b8d2-01c67a74199b" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VestingDomain_7bcc4615-2141-4079-b8d2-01c67a74199b_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_VestingDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_VestingAxis_7bcc4615-2141-4079-b8d2-01c67a74199b" xlink:to="loc_us-gaap_VestingDomain_7bcc4615-2141-4079-b8d2-01c67a74199b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VestingDomain_7b8c1a4c-80ae-423d-b576-06dc92bf017b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_VestingDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_VestingAxis_7bcc4615-2141-4079-b8d2-01c67a74199b" xlink:to="loc_us-gaap_VestingDomain_7b8c1a4c-80ae-423d-b576-06dc92bf017b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_ShareBasedCompensationAwardTrancheFiveMember_d6d88641-7023-41eb-af1c-cf5fd3a2107a" xlink:href="lcid-20240630.xsd#lcid_ShareBasedCompensationAwardTrancheFiveMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VestingDomain_7b8c1a4c-80ae-423d-b576-06dc92bf017b" xlink:to="loc_lcid_ShareBasedCompensationAwardTrancheFiveMember_d6d88641-7023-41eb-af1c-cf5fd3a2107a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_5303d56d-9b89-4f74-9454-15d88f69a99b" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_3ef8e564-2a51-4b81-98ac-cd8276150374" xlink:to="loc_srt_RangeAxis_5303d56d-9b89-4f74-9454-15d88f69a99b" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_5303d56d-9b89-4f74-9454-15d88f69a99b_default" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_5303d56d-9b89-4f74-9454-15d88f69a99b" xlink:to="loc_srt_RangeMember_5303d56d-9b89-4f74-9454-15d88f69a99b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_93599664-5a17-455c-8cbb-a3343afb5cc3" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_5303d56d-9b89-4f74-9454-15d88f69a99b" xlink:to="loc_srt_RangeMember_93599664-5a17-455c-8cbb-a3343afb5cc3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_6e83b8ef-ccf5-4f5e-b9d7-04451b2efb68" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_93599664-5a17-455c-8cbb-a3343afb5cc3" xlink:to="loc_srt_MinimumMember_6e83b8ef-ccf5-4f5e-b9d7-04451b2efb68" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_5f65f603-6c80-4e4a-9bd0-a67a5d199023" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_93599664-5a17-455c-8cbb-a3343afb5cc3" xlink:to="loc_srt_MaximumMember_5f65f603-6c80-4e4a-9bd0-a67a5d199023" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_632366c7-fde5-4252-9fea-6896958bd133" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_7d7b2003-9973-4587-8744-b37910bc3e3b" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_632366c7-fde5-4252-9fea-6896958bd133" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_2fd07857-6af9-460c-ae45-27fccd84ab15" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_7d7b2003-9973-4587-8744-b37910bc3e3b" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_2fd07857-6af9-460c-ae45-27fccd84ab15" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNumberOfVestingInstallmentsWithConditionsMet_0a3d6556-686f-4b9b-8ee3-f57d7c8bbd02" xlink:href="lcid-20240630.xsd#lcid_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNumberOfVestingInstallmentsWithConditionsMet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_7d7b2003-9973-4587-8744-b37910bc3e3b" xlink:to="loc_lcid_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNumberOfVestingInstallmentsWithConditionsMet_0a3d6556-686f-4b9b-8ee3-f57d7c8bbd02" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNumberOfVestingInstallments_fb173d9f-afd9-4d15-b9fd-5060ae705601" xlink:href="lcid-20240630.xsd#lcid_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNumberOfVestingInstallments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_7d7b2003-9973-4587-8744-b37910bc3e3b" xlink:to="loc_lcid_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNumberOfVestingInstallments_fb173d9f-afd9-4d15-b9fd-5060ae705601" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_4d3e393b-fc7c-4766-b496-7fa904b39573" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_7d7b2003-9973-4587-8744-b37910bc3e3b" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_4d3e393b-fc7c-4766-b496-7fa904b39573" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllocatedShareBasedCompensationExpense_c831e694-1664-4bee-aa6c-de6bd0359dbf" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AllocatedShareBasedCompensationExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_7d7b2003-9973-4587-8744-b37910bc3e3b" xlink:to="loc_us-gaap_AllocatedShareBasedCompensationExpense_c831e694-1664-4bee-aa6c-de6bd0359dbf" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_83392a4b-a46a-41ce-aa5f-d0d8cb77b6ec" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_7d7b2003-9973-4587-8744-b37910bc3e3b" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_83392a4b-a46a-41ce-aa5f-d0d8cb77b6ec" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation_f7dead83-170a-452e-bbdf-2b52609ddd19" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_7d7b2003-9973-4587-8744-b37910bc3e3b" xlink:to="loc_us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation_f7dead83-170a-452e-bbdf-2b52609ddd19" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardRequisiteServicePeriod1_56c099a5-5d25-4f7c-a900-3eb8f2c6a3a8" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardRequisiteServicePeriod1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_7d7b2003-9973-4587-8744-b37910bc3e3b" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardRequisiteServicePeriod1_56c099a5-5d25-4f7c-a900-3eb8f2c6a3a8" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardGrantedPercentageOfTarget_e24f2f25-860a-4a6d-96b8-31bdbd7972a9" xlink:href="lcid-20240630.xsd#lcid_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardGrantedPercentageOfTarget"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_7d7b2003-9973-4587-8744-b37910bc3e3b" xlink:to="loc_lcid_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardGrantedPercentageOfTarget_e24f2f25-860a-4a6d-96b8-31bdbd7972a9" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfOriginalGrantsEarnable_b7011943-5b45-42f4-bea7-49c485a153c3" xlink:href="lcid-20240630.xsd#lcid_ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfOriginalGrantsEarnable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_7d7b2003-9973-4587-8744-b37910bc3e3b" xlink:to="loc_lcid_ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfOriginalGrantsEarnable_b7011943-5b45-42f4-bea7-49c485a153c3" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount_19b4a4c6-22ae-4a23-9e39-9640c865338b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_7d7b2003-9973-4587-8744-b37910bc3e3b" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsCapitalizedAmount_19b4a4c6-22ae-4a23-9e39-9640c865338b" xlink:type="arc" order="11"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://lucidmotors.com/role/STOCKBASEDAWARDSScheduleofRestrictedStockUnitsActivityDetails" xlink:type="simple" xlink:href="lcid-20240630.xsd#STOCKBASEDAWARDSScheduleofRestrictedStockUnitsActivityDetails"/>
  <link:definitionLink xlink:role="http://lucidmotors.com/role/STOCKBASEDAWARDSScheduleofRestrictedStockUnitsActivityDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_f239ff8d-c449-4767-b2f0-1fc723d80279" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_46d5bfaa-4a29-476b-bc50-9303a0a384bb" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_f239ff8d-c449-4767-b2f0-1fc723d80279" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_46d5bfaa-4a29-476b-bc50-9303a0a384bb" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_f0bd152c-c3b1-4754-97e8-8d6611c56ce3" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_46d5bfaa-4a29-476b-bc50-9303a0a384bb" xlink:to="loc_us-gaap_AwardTypeAxis_f0bd152c-c3b1-4754-97e8-8d6611c56ce3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_f0bd152c-c3b1-4754-97e8-8d6611c56ce3_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_f0bd152c-c3b1-4754-97e8-8d6611c56ce3" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_f0bd152c-c3b1-4754-97e8-8d6611c56ce3_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_97777948-71b0-4d40-a764-8a1988ef1d1d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_f0bd152c-c3b1-4754-97e8-8d6611c56ce3" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_97777948-71b0-4d40-a764-8a1988ef1d1d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember_97cdf1de-15d2-475e-9c24-cf2f089caea0" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RestrictedStockUnitsRSUMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_97777948-71b0-4d40-a764-8a1988ef1d1d" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember_97cdf1de-15d2-475e-9c24-cf2f089caea0" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_TimeBasedRestrictedStockUnitsMember_5d12dfc5-3e6c-4246-ad10-6a33f4e4b9b6" xlink:href="lcid-20240630.xsd#lcid_TimeBasedRestrictedStockUnitsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestrictedStockUnitsRSUMember_97cdf1de-15d2-475e-9c24-cf2f089caea0" xlink:to="loc_lcid_TimeBasedRestrictedStockUnitsMember_5d12dfc5-3e6c-4246-ad10-6a33f4e4b9b6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_PerformanceBasedRestrictedStockUnitsMember_995789e4-c830-4d22-8d7e-998fb25a5e07" xlink:href="lcid-20240630.xsd#lcid_PerformanceBasedRestrictedStockUnitsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestrictedStockUnitsRSUMember_97cdf1de-15d2-475e-9c24-cf2f089caea0" xlink:to="loc_lcid_PerformanceBasedRestrictedStockUnitsMember_995789e4-c830-4d22-8d7e-998fb25a5e07" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingRollForward_8fcda5c3-e07b-4b11-a0e9-3f127aeb839f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_f239ff8d-c449-4767-b2f0-1fc723d80279" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingRollForward_8fcda5c3-e07b-4b11-a0e9-3f127aeb839f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_d824a068-0c54-4bf4-8e1e-ebe8b89f1525" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingRollForward_8fcda5c3-e07b-4b11-a0e9-3f127aeb839f" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_d824a068-0c54-4bf4-8e1e-ebe8b89f1525" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_1742f799-7890-475c-ac8b-f775741b1eb5" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingRollForward_8fcda5c3-e07b-4b11-a0e9-3f127aeb839f" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_1742f799-7890-475c-ac8b-f775741b1eb5" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_74331e8b-70d9-4ec5-a739-9be2e9daa911" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingRollForward_8fcda5c3-e07b-4b11-a0e9-3f127aeb839f" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_74331e8b-70d9-4ec5-a739-9be2e9daa911" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_84c2f86d-6f18-4c2c-8f66-2e14c13eb369" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingRollForward_8fcda5c3-e07b-4b11-a0e9-3f127aeb839f" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_84c2f86d-6f18-4c2c-8f66-2e14c13eb369" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_3499efe3-feca-48e5-9e15-2c70c39b21ef" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_e8f98361-9d8d-4f01-a90d-5f1b0dc4aa50" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_f239ff8d-c449-4767-b2f0-1fc723d80279" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_e8f98361-9d8d-4f01-a90d-5f1b0dc4aa50" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_5105f2a6-ae57-4598-8941-6a0dcd166db5" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_e8f98361-9d8d-4f01-a90d-5f1b0dc4aa50" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_5105f2a6-ae57-4598-8941-6a0dcd166db5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_468cbdc6-c047-41d7-9955-9a714dd18d33" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_e8f98361-9d8d-4f01-a90d-5f1b0dc4aa50" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_468cbdc6-c047-41d7-9955-9a714dd18d33" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_698c1a0f-d2ee-4631-a553-51279219183b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_e8f98361-9d8d-4f01-a90d-5f1b0dc4aa50" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_698c1a0f-d2ee-4631-a553-51279219183b" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_2e31d6ba-3a99-45b2-a7b9-b5cc324bafcb" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_e8f98361-9d8d-4f01-a90d-5f1b0dc4aa50" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_2e31d6ba-3a99-45b2-a7b9-b5cc324bafcb" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_02252487-d2f9-4df6-af6e-97ba63e9fe8e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://lucidmotors.com/role/STOCKBASEDAWARDSScheduleofPerformanceBasedRSUsDetails" xlink:type="simple" xlink:href="lcid-20240630.xsd#STOCKBASEDAWARDSScheduleofPerformanceBasedRSUsDetails"/>
  <link:definitionLink xlink:role="http://lucidmotors.com/role/STOCKBASEDAWARDSScheduleofPerformanceBasedRSUsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_c58f381c-8820-4c4a-bed3-117845fdf9da" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_2cac9ebf-c27a-4fa0-850f-7f99a556c0ee" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_c58f381c-8820-4c4a-bed3-117845fdf9da" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_2cac9ebf-c27a-4fa0-850f-7f99a556c0ee" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_ab304dd0-a1de-485b-88a5-70e040fd42a9" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_2cac9ebf-c27a-4fa0-850f-7f99a556c0ee" xlink:to="loc_us-gaap_AwardTypeAxis_ab304dd0-a1de-485b-88a5-70e040fd42a9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_ab304dd0-a1de-485b-88a5-70e040fd42a9_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_ab304dd0-a1de-485b-88a5-70e040fd42a9" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_ab304dd0-a1de-485b-88a5-70e040fd42a9_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_941e9905-4c59-4d05-b69a-af8beb169ddc" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_ab304dd0-a1de-485b-88a5-70e040fd42a9" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_941e9905-4c59-4d05-b69a-af8beb169ddc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_PerformanceBasedRestrictedStockUnitsMember_d439c902-9fa2-4391-a3d0-a0d730d2de5c" xlink:href="lcid-20240630.xsd#lcid_PerformanceBasedRestrictedStockUnitsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_941e9905-4c59-4d05-b69a-af8beb169ddc" xlink:to="loc_lcid_PerformanceBasedRestrictedStockUnitsMember_d439c902-9fa2-4391-a3d0-a0d730d2de5c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageVolatilityRate_52944566-1662-45cb-92c6-a34d4ac97b54" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageVolatilityRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_c58f381c-8820-4c4a-bed3-117845fdf9da" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageVolatilityRate_52944566-1662-45cb-92c6-a34d4ac97b54" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_b31295ce-a1ec-4f02-a323-b9b9e3eb9e5b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_c58f381c-8820-4c4a-bed3-117845fdf9da" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_b31295ce-a1ec-4f02-a323-b9b9e3eb9e5b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_13618124-43b8-4641-9046-c20c1bd74115" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_c58f381c-8820-4c4a-bed3-117845fdf9da" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_13618124-43b8-4641-9046-c20c1bd74115" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_765c2a7d-5591-4a9f-8cfd-a553f0b984a1" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_c58f381c-8820-4c4a-bed3-117845fdf9da" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_765c2a7d-5591-4a9f-8cfd-a553f0b984a1" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://lucidmotors.com/role/STOCKBASEDAWARDSEmployeeStockPurchasePlanESPPNarrativeDetails" xlink:type="simple" xlink:href="lcid-20240630.xsd#STOCKBASEDAWARDSEmployeeStockPurchasePlanESPPNarrativeDetails"/>
  <link:definitionLink xlink:role="http://lucidmotors.com/role/STOCKBASEDAWARDSEmployeeStockPurchasePlanESPPNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_1f8c4747-7f96-4a4f-a473-8245e36bcf1c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_e30da53e-ab3c-40b3-9a42-0e69b0001687" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_1f8c4747-7f96-4a4f-a473-8245e36bcf1c" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_e30da53e-ab3c-40b3-9a42-0e69b0001687" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_d70a0b4f-d6c4-4efb-8d98-36ef33a80bcc" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_e30da53e-ab3c-40b3-9a42-0e69b0001687" xlink:to="loc_us-gaap_AwardTypeAxis_d70a0b4f-d6c4-4efb-8d98-36ef33a80bcc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_d70a0b4f-d6c4-4efb-8d98-36ef33a80bcc_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_d70a0b4f-d6c4-4efb-8d98-36ef33a80bcc" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_d70a0b4f-d6c4-4efb-8d98-36ef33a80bcc_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_73a8c2fb-9696-4264-a8a2-5845a45c7423" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_d70a0b4f-d6c4-4efb-8d98-36ef33a80bcc" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_73a8c2fb-9696-4264-a8a2-5845a45c7423" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeStockMember_17839f7a-e9c4-4320-90a5-1665720ec884" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EmployeeStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_73a8c2fb-9696-4264-a8a2-5845a45c7423" xlink:to="loc_us-gaap_EmployeeStockMember_17839f7a-e9c4-4320-90a5-1665720ec884" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_ShareBasedCompensationArrangementByShareBasedPaymentAwardConsecutiveOfferingPeriod_bd1f62b3-aed5-4fb4-aaa3-cedabba31578" xlink:href="lcid-20240630.xsd#lcid_ShareBasedCompensationArrangementByShareBasedPaymentAwardConsecutiveOfferingPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_1f8c4747-7f96-4a4f-a473-8245e36bcf1c" xlink:to="loc_lcid_ShareBasedCompensationArrangementByShareBasedPaymentAwardConsecutiveOfferingPeriod_bd1f62b3-aed5-4fb4-aaa3-cedabba31578" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfPurchasePeriods_5d6b5abb-2847-4fa4-985e-4f8cf7bcda2e" xlink:href="lcid-20240630.xsd#lcid_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfPurchasePeriods"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_1f8c4747-7f96-4a4f-a473-8245e36bcf1c" xlink:to="loc_lcid_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfPurchasePeriods_5d6b5abb-2847-4fa4-985e-4f8cf7bcda2e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_ShareBasedCompensationArrangementByShareBasedPaymentAwardPurchasePeriod_3489984a-9590-4b6e-b282-4383cbf2944b" xlink:href="lcid-20240630.xsd#lcid_ShareBasedCompensationArrangementByShareBasedPaymentAwardPurchasePeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_1f8c4747-7f96-4a4f-a473-8245e36bcf1c" xlink:to="loc_lcid_ShareBasedCompensationArrangementByShareBasedPaymentAwardPurchasePeriod_3489984a-9590-4b6e-b282-4383cbf2944b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent_f4ae5724-04cb-43d8-af5e-d9ab9bfbc479" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_1f8c4747-7f96-4a4f-a473-8245e36bcf1c" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent_f4ae5724-04cb-43d8-af5e-d9ab9bfbc479" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_cbdd58ef-9328-454c-8447-c160e713d3c9" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_1f8c4747-7f96-4a4f-a473-8245e36bcf1c" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_cbdd58ef-9328-454c-8447-c160e713d3c9" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_dc74b490-cfd2-4caa-92c7-9d6beb5aa7ef" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_1f8c4747-7f96-4a4f-a473-8245e36bcf1c" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_dc74b490-cfd2-4caa-92c7-9d6beb5aa7ef" xlink:type="arc" order="5"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://lucidmotors.com/role/STOCKBASEDAWARDSScheduleofStockBasedCompensationExpenseDetails" xlink:type="simple" xlink:href="lcid-20240630.xsd#STOCKBASEDAWARDSScheduleofStockBasedCompensationExpenseDetails"/>
  <link:definitionLink xlink:role="http://lucidmotors.com/role/STOCKBASEDAWARDSScheduleofStockBasedCompensationExpenseDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_ac1a3b22-bb02-4702-9261-6b2cad9fb616" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_89148709-fb8b-4c37-ac26-f45a11bd5e27" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_ac1a3b22-bb02-4702-9261-6b2cad9fb616" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_89148709-fb8b-4c37-ac26-f45a11bd5e27" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationAxis_8af00210-88c2-441b-9af1-bebb79ce247b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncomeStatementLocationAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_89148709-fb8b-4c37-ac26-f45a11bd5e27" xlink:to="loc_us-gaap_IncomeStatementLocationAxis_8af00210-88c2-441b-9af1-bebb79ce247b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_8af00210-88c2-441b-9af1-bebb79ce247b_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncomeStatementLocationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_8af00210-88c2-441b-9af1-bebb79ce247b" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_8af00210-88c2-441b-9af1-bebb79ce247b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_07ad4ddf-8792-40fa-81f0-e50611fd5832" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IncomeStatementLocationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_8af00210-88c2-441b-9af1-bebb79ce247b" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_07ad4ddf-8792-40fa-81f0-e50611fd5832" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfSalesMember_42ba1203-7e4d-4ddf-af16-1c2df538c93a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CostOfSalesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_07ad4ddf-8792-40fa-81f0-e50611fd5832" xlink:to="loc_us-gaap_CostOfSalesMember_42ba1203-7e4d-4ddf-af16-1c2df538c93a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ResearchAndDevelopmentExpenseMember_b234b37f-0a82-4296-91eb-e9a0cde625ec" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ResearchAndDevelopmentExpenseMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_07ad4ddf-8792-40fa-81f0-e50611fd5832" xlink:to="loc_us-gaap_ResearchAndDevelopmentExpenseMember_b234b37f-0a82-4296-91eb-e9a0cde625ec" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SellingGeneralAndAdministrativeExpensesMember_20997078-e4f4-4476-8470-7fdcf6c1eb6b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SellingGeneralAndAdministrativeExpensesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_07ad4ddf-8792-40fa-81f0-e50611fd5832" xlink:to="loc_us-gaap_SellingGeneralAndAdministrativeExpensesMember_20997078-e4f4-4476-8470-7fdcf6c1eb6b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringChargesMember_b0f6868a-d293-4170-a068-673a7f24139e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RestructuringChargesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_07ad4ddf-8792-40fa-81f0-e50611fd5832" xlink:to="loc_us-gaap_RestructuringChargesMember_b0f6868a-d293-4170-a068-673a7f24139e" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllocatedShareBasedCompensationExpense_4fdfac91-206e-4016-8f69-43a5f214d347" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AllocatedShareBasedCompensationExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_ac1a3b22-bb02-4702-9261-6b2cad9fb616" xlink:to="loc_us-gaap_AllocatedShareBasedCompensationExpense_4fdfac91-206e-4016-8f69-43a5f214d347" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://lucidmotors.com/role/LEASESNarrativeDetails" xlink:type="simple" xlink:href="lcid-20240630.xsd#LEASESNarrativeDetails"/>
  <link:definitionLink xlink:role="http://lucidmotors.com/role/LEASESNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeLeaseDescriptionLineItems_fc637bef-e1e6-4dfc-9dc9-1661e05049b7" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LesseeLeaseDescriptionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeLeaseDescriptionTable_9b100181-d197-4044-835c-2f3734618c00" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LesseeLeaseDescriptionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_fc637bef-e1e6-4dfc-9dc9-1661e05049b7" xlink:to="loc_us-gaap_LesseeLeaseDescriptionTable_9b100181-d197-4044-835c-2f3734618c00" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StatementGeographicalAxis_f3f4e864-5458-4858-a65e-7653994dca9e" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_StatementGeographicalAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LesseeLeaseDescriptionTable_9b100181-d197-4044-835c-2f3734618c00" xlink:to="loc_srt_StatementGeographicalAxis_f3f4e864-5458-4858-a65e-7653994dca9e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_f3f4e864-5458-4858-a65e-7653994dca9e_default" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_StatementGeographicalAxis_f3f4e864-5458-4858-a65e-7653994dca9e" xlink:to="loc_srt_SegmentGeographicalDomain_f3f4e864-5458-4858-a65e-7653994dca9e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_0962ba53-56b5-4053-8cc4-0251072550b7" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_StatementGeographicalAxis_f3f4e864-5458-4858-a65e-7653994dca9e" xlink:to="loc_srt_SegmentGeographicalDomain_0962ba53-56b5-4053-8cc4-0251072550b7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_CasaGrandeArizonaMember_d2e521d4-de21-4950-8294-87bcc84647a1" xlink:href="lcid-20240630.xsd#lcid_CasaGrandeArizonaMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_0962ba53-56b5-4053-8cc4-0251072550b7" xlink:to="loc_lcid_CasaGrandeArizonaMember_d2e521d4-de21-4950-8294-87bcc84647a1" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByLiabilityClassAxis_76fb97f8-6eb6-4869-a5eb-868d6aa632d8" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueByLiabilityClassAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LesseeLeaseDescriptionTable_9b100181-d197-4044-835c-2f3734618c00" xlink:to="loc_us-gaap_FairValueByLiabilityClassAxis_76fb97f8-6eb6-4869-a5eb-868d6aa632d8" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain_76fb97f8-6eb6-4869-a5eb-868d6aa632d8_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByLiabilityClassAxis_76fb97f8-6eb6-4869-a5eb-868d6aa632d8" xlink:to="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain_76fb97f8-6eb6-4869-a5eb-868d6aa632d8_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain_09aadae1-80ed-4c54-8775-fb8076c05d5d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByLiabilityClassAxis_76fb97f8-6eb6-4869-a5eb-868d6aa632d8" xlink:to="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain_09aadae1-80ed-4c54-8775-fb8076c05d5d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_FailedSaleLeasebackMember_bdc42ce1-2ac9-42b2-880e-f332c2c08b15" xlink:href="lcid-20240630.xsd#lcid_FailedSaleLeasebackMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain_09aadae1-80ed-4c54-8775-fb8076c05d5d" xlink:to="loc_lcid_FailedSaleLeasebackMember_bdc42ce1-2ac9-42b2-880e-f332c2c08b15" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeFinanceLeaseTermOfContract1_96ce3e07-ad77-422e-860d-f34408e3166e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LesseeFinanceLeaseTermOfContract1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_fc637bef-e1e6-4dfc-9dc9-1661e05049b7" xlink:to="loc_us-gaap_LesseeFinanceLeaseTermOfContract1_96ce3e07-ad77-422e-860d-f34408e3166e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseRightOfUseAsset_005b8173-d851-4465-99d5-64b3283ad26e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FinanceLeaseRightOfUseAsset"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_fc637bef-e1e6-4dfc-9dc9-1661e05049b7" xlink:to="loc_us-gaap_FinanceLeaseRightOfUseAsset_005b8173-d851-4465-99d5-64b3283ad26e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiability_9ab7903e-a37f-4b6d-9ed0-6c23d203e254" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FinanceLeaseLiability"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_fc637bef-e1e6-4dfc-9dc9-1661e05049b7" xlink:to="loc_us-gaap_FinanceLeaseLiability_9ab7903e-a37f-4b6d-9ed0-6c23d203e254" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_ProceedsFromFailedSaleLeasebackTransaction_89b20b28-27e6-40ff-a6c4-d518abfec90d" xlink:href="lcid-20240630.xsd#lcid_ProceedsFromFailedSaleLeasebackTransaction"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_fc637bef-e1e6-4dfc-9dc9-1661e05049b7" xlink:to="loc_lcid_ProceedsFromFailedSaleLeasebackTransaction_89b20b28-27e6-40ff-a6c4-d518abfec90d" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrent_7dd38e84-734b-43fa-a365-41cf84835847" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherLiabilitiesNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_fc637bef-e1e6-4dfc-9dc9-1661e05049b7" xlink:to="loc_us-gaap_OtherLiabilitiesNoncurrent_7dd38e84-734b-43fa-a365-41cf84835847" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount_9d366f50-11a9-4ff3-b034-842ae4b27c10" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_fc637bef-e1e6-4dfc-9dc9-1661e05049b7" xlink:to="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationBalanceSheetAmount_9d366f50-11a9-4ff3-b034-842ae4b27c10" xlink:type="arc" order="5"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://lucidmotors.com/role/COMMITMENTSANDCONTINGENCIESNarrativeDetails" xlink:type="simple" xlink:href="lcid-20240630.xsd#COMMITMENTSANDCONTINGENCIESNarrativeDetails"/>
  <link:definitionLink xlink:role="http://lucidmotors.com/role/COMMITMENTSANDCONTINGENCIESNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingenciesLineItems_f1dfdbaa-f297-4be0-b4bd-778e433b869f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LossContingenciesLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingenciesTable_04ea584d-9294-4099-9e77-8332513e9766" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LossContingenciesTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_LossContingenciesLineItems_f1dfdbaa-f297-4be0-b4bd-778e433b869f" xlink:to="loc_us-gaap_LossContingenciesTable_04ea584d-9294-4099-9e77-8332513e9766" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis_fb26acd6-0e6c-4de3-8284-b41d09eab6da" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LossContingenciesTable_04ea584d-9294-4099-9e77-8332513e9766" xlink:to="loc_us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis_fb26acd6-0e6c-4de3-8284-b41d09eab6da" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermPurchaseCommitmentCategoryOfItemPurchasedDomain_fb26acd6-0e6c-4de3-8284-b41d09eab6da_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongTermPurchaseCommitmentCategoryOfItemPurchasedDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis_fb26acd6-0e6c-4de3-8284-b41d09eab6da" xlink:to="loc_us-gaap_LongTermPurchaseCommitmentCategoryOfItemPurchasedDomain_fb26acd6-0e6c-4de3-8284-b41d09eab6da_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermPurchaseCommitmentCategoryOfItemPurchasedDomain_dcba035a-bd22-4b24-ad1d-e391e9db1840" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongTermPurchaseCommitmentCategoryOfItemPurchasedDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis_fb26acd6-0e6c-4de3-8284-b41d09eab6da" xlink:to="loc_us-gaap_LongTermPurchaseCommitmentCategoryOfItemPurchasedDomain_dcba035a-bd22-4b24-ad1d-e391e9db1840" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CapitalAdditionsMember_09d9a875-03e3-446b-8906-7e07ba8f21b2" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CapitalAdditionsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongTermPurchaseCommitmentCategoryOfItemPurchasedDomain_dcba035a-bd22-4b24-ad1d-e391e9db1840" xlink:to="loc_us-gaap_CapitalAdditionsMember_09d9a875-03e3-446b-8906-7e07ba8f21b2" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingenciesByNatureOfContingencyAxis_de62a57e-8a57-4295-bc8b-a26d4d181bcc" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LossContingenciesByNatureOfContingencyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LossContingenciesTable_04ea584d-9294-4099-9e77-8332513e9766" xlink:to="loc_us-gaap_LossContingenciesByNatureOfContingencyAxis_de62a57e-8a57-4295-bc8b-a26d4d181bcc" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingencyNatureDomain_de62a57e-8a57-4295-bc8b-a26d4d181bcc_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LossContingencyNatureDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LossContingenciesByNatureOfContingencyAxis_de62a57e-8a57-4295-bc8b-a26d4d181bcc" xlink:to="loc_us-gaap_LossContingencyNatureDomain_de62a57e-8a57-4295-bc8b-a26d4d181bcc_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingencyNatureDomain_5d5ff44a-9761-4c4b-aab5-6898b5e056c7" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LossContingencyNatureDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LossContingenciesByNatureOfContingencyAxis_de62a57e-8a57-4295-bc8b-a26d4d181bcc" xlink:to="loc_us-gaap_LossContingencyNatureDomain_5d5ff44a-9761-4c4b-aab5-6898b5e056c7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndemnificationGuaranteeMember_dba64e36-ac91-4d45-86d8-345105c060f0" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_IndemnificationGuaranteeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LossContingencyNatureDomain_5d5ff44a-9761-4c4b-aab5-6898b5e056c7" xlink:to="loc_us-gaap_IndemnificationGuaranteeMember_dba64e36-ac91-4d45-86d8-345105c060f0" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_LitigationCaseAxis_37ca0a24-dbf9-4344-ba76-ffd50d57d5ad" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_LitigationCaseAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LossContingenciesTable_04ea584d-9294-4099-9e77-8332513e9766" xlink:to="loc_srt_LitigationCaseAxis_37ca0a24-dbf9-4344-ba76-ffd50d57d5ad" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_LitigationCaseTypeDomain_37ca0a24-dbf9-4344-ba76-ffd50d57d5ad_default" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_LitigationCaseTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_LitigationCaseAxis_37ca0a24-dbf9-4344-ba76-ffd50d57d5ad" xlink:to="loc_srt_LitigationCaseTypeDomain_37ca0a24-dbf9-4344-ba76-ffd50d57d5ad_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_LitigationCaseTypeDomain_7c9187f8-6ffc-4ffe-811a-851a9f7a2e07" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_LitigationCaseTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_LitigationCaseAxis_37ca0a24-dbf9-4344-ba76-ffd50d57d5ad" xlink:to="loc_srt_LitigationCaseTypeDomain_7c9187f8-6ffc-4ffe-811a-851a9f7a2e07" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_IndividualActionsMember_447ff7b6-e84b-47d0-aad8-8dccf2a533c4" xlink:href="lcid-20240630.xsd#lcid_IndividualActionsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_LitigationCaseTypeDomain_7c9187f8-6ffc-4ffe-811a-851a9f7a2e07" xlink:to="loc_lcid_IndividualActionsMember_447ff7b6-e84b-47d0-aad8-8dccf2a533c4" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_ShareholderDerivativeActionsMember_b3a5188a-6a9e-4340-9e49-1c5a9c9159bd" xlink:href="lcid-20240630.xsd#lcid_ShareholderDerivativeActionsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_LitigationCaseTypeDomain_7c9187f8-6ffc-4ffe-811a-851a9f7a2e07" xlink:to="loc_lcid_ShareholderDerivativeActionsMember_b3a5188a-6a9e-4340-9e49-1c5a9c9159bd" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_PutativeClassActionsMember_f4598141-94d0-4c3d-a035-05c427c19835" xlink:href="lcid-20240630.xsd#lcid_PutativeClassActionsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_LitigationCaseTypeDomain_7c9187f8-6ffc-4ffe-811a-851a9f7a2e07" xlink:to="loc_lcid_PutativeClassActionsMember_f4598141-94d0-4c3d-a035-05c427c19835" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractualObligation_1857f172-0560-4abc-b355-32a2f499d13c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ContractualObligation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LossContingenciesLineItems_f1dfdbaa-f297-4be0-b4bd-778e433b869f" xlink:to="loc_us-gaap_ContractualObligation_1857f172-0560-4abc-b355-32a2f499d13c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingencyNewClaimsFiledNumber_0f5d71b4-c153-4245-8e03-b26c78b307af" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LossContingencyNewClaimsFiledNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LossContingenciesLineItems_f1dfdbaa-f297-4be0-b4bd-778e433b869f" xlink:to="loc_us-gaap_LossContingencyNewClaimsFiledNumber_0f5d71b4-c153-4245-8e03-b26c78b307af" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_LossContingencyClaimsConsolidatedNumber_d07774b7-0d60-4315-b6f3-c08954846655" xlink:href="lcid-20240630.xsd#lcid_LossContingencyClaimsConsolidatedNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LossContingenciesLineItems_f1dfdbaa-f297-4be0-b4bd-778e433b869f" xlink:to="loc_lcid_LossContingencyClaimsConsolidatedNumber_d07774b7-0d60-4315-b6f3-c08954846655" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingencyEstimateOfPossibleLoss_f6d1e197-7bae-4be0-aa04-19d6369a2c60" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LossContingencyEstimateOfPossibleLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LossContingenciesLineItems_f1dfdbaa-f297-4be0-b4bd-778e433b869f" xlink:to="loc_us-gaap_LossContingencyEstimateOfPossibleLoss_f6d1e197-7bae-4be0-aa04-19d6369a2c60" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://lucidmotors.com/role/COMMITMENTSANDCONTINGENCIESScheduleofEstimatedFuturePaymentsDetails" xlink:type="simple" xlink:href="lcid-20240630.xsd#COMMITMENTSANDCONTINGENCIESScheduleofEstimatedFuturePaymentsDetails"/>
  <link:definitionLink xlink:role="http://lucidmotors.com/role/COMMITMENTSANDCONTINGENCIESScheduleofEstimatedFuturePaymentsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermPurchaseCommitmentLineItems_7725becf-c313-4e51-b33e-559272309c60" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongTermPurchaseCommitmentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermPurchaseCommitmentTable_d8253dfc-a0f7-4f11-9891-b1ddc0932e3b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongTermPurchaseCommitmentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_LongTermPurchaseCommitmentLineItems_7725becf-c313-4e51-b33e-559272309c60" xlink:to="loc_us-gaap_LongTermPurchaseCommitmentTable_d8253dfc-a0f7-4f11-9891-b1ddc0932e3b" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis_7cdf307e-7352-4f10-8162-83653f2efb23" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LongTermPurchaseCommitmentTable_d8253dfc-a0f7-4f11-9891-b1ddc0932e3b" xlink:to="loc_us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis_7cdf307e-7352-4f10-8162-83653f2efb23" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermPurchaseCommitmentCategoryOfItemPurchasedDomain_7cdf307e-7352-4f10-8162-83653f2efb23_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongTermPurchaseCommitmentCategoryOfItemPurchasedDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis_7cdf307e-7352-4f10-8162-83653f2efb23" xlink:to="loc_us-gaap_LongTermPurchaseCommitmentCategoryOfItemPurchasedDomain_7cdf307e-7352-4f10-8162-83653f2efb23_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermPurchaseCommitmentCategoryOfItemPurchasedDomain_9fa0f52a-55a4-448a-8580-47754ae386d2" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongTermPurchaseCommitmentCategoryOfItemPurchasedDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis_7cdf307e-7352-4f10-8162-83653f2efb23" xlink:to="loc_us-gaap_LongTermPurchaseCommitmentCategoryOfItemPurchasedDomain_9fa0f52a-55a4-448a-8580-47754ae386d2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_BatteryCellsMember_d54b8a79-bd12-4806-82d1-7510b8f8c43a" xlink:href="lcid-20240630.xsd#lcid_BatteryCellsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongTermPurchaseCommitmentCategoryOfItemPurchasedDomain_9fa0f52a-55a4-448a-8580-47754ae386d2" xlink:to="loc_lcid_BatteryCellsMember_d54b8a79-bd12-4806-82d1-7510b8f8c43a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CounterpartyNameAxis_de036c02-b232-4425-8504-fa6e10e35fb6" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_CounterpartyNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LongTermPurchaseCommitmentTable_d8253dfc-a0f7-4f11-9891-b1ddc0932e3b" xlink:to="loc_srt_CounterpartyNameAxis_de036c02-b232-4425-8504-fa6e10e35fb6" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_de036c02-b232-4425-8504-fa6e10e35fb6_default" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_CounterpartyNameAxis_de036c02-b232-4425-8504-fa6e10e35fb6" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_de036c02-b232-4425-8504-fa6e10e35fb6_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_4af8e90d-e21f-47a9-9d2d-0d51c0c3ca44" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_CounterpartyNameAxis_de036c02-b232-4425-8504-fa6e10e35fb6" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_4af8e90d-e21f-47a9-9d2d-0d51c0c3ca44" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_PanasonicEnergyCoLtdAndCertainOfItsAffiliatesMember_bb6ae870-9537-4ede-aac2-21c76a8d047e" xlink:href="lcid-20240630.xsd#lcid_PanasonicEnergyCoLtdAndCertainOfItsAffiliatesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RepurchaseAgreementCounterpartyNameDomain_4af8e90d-e21f-47a9-9d2d-0d51c0c3ca44" xlink:to="loc_lcid_PanasonicEnergyCoLtdAndCertainOfItsAffiliatesMember_bb6ae870-9537-4ede-aac2-21c76a8d047e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PurchaseObligationFutureMinimumPaymentsRemainderOfFiscalYear_bce45e9f-32a7-4139-8a3d-42fd351311fe" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PurchaseObligationFutureMinimumPaymentsRemainderOfFiscalYear"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongTermPurchaseCommitmentLineItems_7725becf-c313-4e51-b33e-559272309c60" xlink:to="loc_us-gaap_PurchaseObligationFutureMinimumPaymentsRemainderOfFiscalYear_bce45e9f-32a7-4139-8a3d-42fd351311fe" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PurchaseObligationDueInNextTwelveMonths_8dfcc811-ebc5-4932-adce-52f754c70a4a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PurchaseObligationDueInNextTwelveMonths"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongTermPurchaseCommitmentLineItems_7725becf-c313-4e51-b33e-559272309c60" xlink:to="loc_us-gaap_PurchaseObligationDueInNextTwelveMonths_8dfcc811-ebc5-4932-adce-52f754c70a4a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PurchaseObligationDueInSecondYear_1582d22b-6371-45d4-b1cf-19e49eed6210" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PurchaseObligationDueInSecondYear"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongTermPurchaseCommitmentLineItems_7725becf-c313-4e51-b33e-559272309c60" xlink:to="loc_us-gaap_PurchaseObligationDueInSecondYear_1582d22b-6371-45d4-b1cf-19e49eed6210" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PurchaseObligationDueInThirdYear_0df89a27-330c-43a1-8c11-0f92730d75a4" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PurchaseObligationDueInThirdYear"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongTermPurchaseCommitmentLineItems_7725becf-c313-4e51-b33e-559272309c60" xlink:to="loc_us-gaap_PurchaseObligationDueInThirdYear_0df89a27-330c-43a1-8c11-0f92730d75a4" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PurchaseObligationDueInFourthYear_f9ed582d-8ec3-4a75-94d1-f3b328e68a18" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PurchaseObligationDueInFourthYear"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongTermPurchaseCommitmentLineItems_7725becf-c313-4e51-b33e-559272309c60" xlink:to="loc_us-gaap_PurchaseObligationDueInFourthYear_f9ed582d-8ec3-4a75-94d1-f3b328e68a18" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_PurchaseObligationToBePaidAfterYearFour_688da660-212e-45a2-b531-d83b5ade9a89" xlink:href="lcid-20240630.xsd#lcid_PurchaseObligationToBePaidAfterYearFour"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongTermPurchaseCommitmentLineItems_7725becf-c313-4e51-b33e-559272309c60" xlink:to="loc_lcid_PurchaseObligationToBePaidAfterYearFour_688da660-212e-45a2-b531-d83b5ade9a89" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PurchaseObligation_cbf09d06-959b-416e-a86d-040da337a0f2" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PurchaseObligation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongTermPurchaseCommitmentLineItems_7725becf-c313-4e51-b33e-559272309c60" xlink:to="loc_us-gaap_PurchaseObligation_cbf09d06-959b-416e-a86d-040da337a0f2" xlink:type="arc" order="6"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://lucidmotors.com/role/NETLOSSPERSHAREScheduleofAntidilutiveSecuritiesExcludedfromComputationofEarningsPerShareDetails" xlink:type="simple" xlink:href="lcid-20240630.xsd#NETLOSSPERSHAREScheduleofAntidilutiveSecuritiesExcludedfromComputationofEarningsPerShareDetails"/>
  <link:definitionLink xlink:role="http://lucidmotors.com/role/NETLOSSPERSHAREScheduleofAntidilutiveSecuritiesExcludedfromComputationofEarningsPerShareDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_c450c211-c5d8-4a56-b971-4cb12defb4a7" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_d7e0d33b-9a62-484a-972c-c501313554e5" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_c450c211-c5d8-4a56-b971-4cb12defb4a7" xlink:to="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_d7e0d33b-9a62-484a-972c-c501313554e5" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_1d4a0c98-4688-4e9c-9f21-c613bbd08fa4" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_d7e0d33b-9a62-484a-972c-c501313554e5" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_1d4a0c98-4688-4e9c-9f21-c613bbd08fa4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesNameDomain_1d4a0c98-4688-4e9c-9f21-c613bbd08fa4_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AntidilutiveSecuritiesNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_1d4a0c98-4688-4e9c-9f21-c613bbd08fa4" xlink:to="loc_us-gaap_AntidilutiveSecuritiesNameDomain_1d4a0c98-4688-4e9c-9f21-c613bbd08fa4_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesNameDomain_89d03622-632c-4bcd-b7f7-9d929cf0c78e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AntidilutiveSecuritiesNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_1d4a0c98-4688-4e9c-9f21-c613bbd08fa4" xlink:to="loc_us-gaap_AntidilutiveSecuritiesNameDomain_89d03622-632c-4bcd-b7f7-9d929cf0c78e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_PrivatePlacementWarrantsMember_b02d49dd-8782-46db-abec-ebfe1aceee73" xlink:href="lcid-20240630.xsd#lcid_PrivatePlacementWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_89d03622-632c-4bcd-b7f7-9d929cf0c78e" xlink:to="loc_lcid_PrivatePlacementWarrantsMember_b02d49dd-8782-46db-abec-ebfe1aceee73" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeStockOptionMember_c329d0fc-f7b0-453f-ba25-404e544379ac" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EmployeeStockOptionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_89d03622-632c-4bcd-b7f7-9d929cf0c78e" xlink:to="loc_us-gaap_EmployeeStockOptionMember_c329d0fc-f7b0-453f-ba25-404e544379ac" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember_4da7a8e9-c752-48b0-a581-73df5587aed6" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RestrictedStockUnitsRSUMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_89d03622-632c-4bcd-b7f7-9d929cf0c78e" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember_4da7a8e9-c752-48b0-a581-73df5587aed6" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeStockMember_18dbf9a0-0d70-4f19-8a32-016aff1b0c89" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EmployeeStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_89d03622-632c-4bcd-b7f7-9d929cf0c78e" xlink:to="loc_us-gaap_EmployeeStockMember_18dbf9a0-0d70-4f19-8a32-016aff1b0c89" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_IfConvertedCommonSharesFromConvertibleNotesMember_c1e5838e-51ca-4dc3-a5b9-ace44ae8b369" xlink:href="lcid-20240630.xsd#lcid_IfConvertedCommonSharesFromConvertibleNotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_89d03622-632c-4bcd-b7f7-9d929cf0c78e" xlink:to="loc_lcid_IfConvertedCommonSharesFromConvertibleNotesMember_c1e5838e-51ca-4dc3-a5b9-ace44ae8b369" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_IfConvertedCommonSharesFromSeriesARedeemableConvertiblePreferredStockMember_6ce153ad-4b8e-4afe-8fbe-cff463d52244" xlink:href="lcid-20240630.xsd#lcid_IfConvertedCommonSharesFromSeriesARedeemableConvertiblePreferredStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_89d03622-632c-4bcd-b7f7-9d929cf0c78e" xlink:to="loc_lcid_IfConvertedCommonSharesFromSeriesARedeemableConvertiblePreferredStockMember_6ce153ad-4b8e-4afe-8fbe-cff463d52244" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_73023b9c-d240-4900-a2e8-6dd3e4dfa3da" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_c450c211-c5d8-4a56-b971-4cb12defb4a7" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_73023b9c-d240-4900-a2e8-6dd3e4dfa3da" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://lucidmotors.com/role/NETLOSSPERSHARENarrativeDetails" xlink:type="simple" xlink:href="lcid-20240630.xsd#NETLOSSPERSHARENarrativeDetails"/>
  <link:definitionLink xlink:role="http://lucidmotors.com/role/NETLOSSPERSHARENarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_7d3a0c81-1e67-4cc7-ba64-30f8e2326b82" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_c8d19386-5fe2-4743-864e-7d1ed0f33d01" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_7d3a0c81-1e67-4cc7-ba64-30f8e2326b82" xlink:to="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_c8d19386-5fe2-4743-864e-7d1ed0f33d01" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_f504fb3a-b194-480b-93f2-56a3e5aa480b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_c8d19386-5fe2-4743-864e-7d1ed0f33d01" xlink:to="loc_us-gaap_AwardTypeAxis_f504fb3a-b194-480b-93f2-56a3e5aa480b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_f504fb3a-b194-480b-93f2-56a3e5aa480b_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_f504fb3a-b194-480b-93f2-56a3e5aa480b" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_f504fb3a-b194-480b-93f2-56a3e5aa480b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_625bff06-cc12-4786-9206-96d3d52eb673" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_f504fb3a-b194-480b-93f2-56a3e5aa480b" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_625bff06-cc12-4786-9206-96d3d52eb673" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember_f86b7213-fa9d-473c-a91f-35cbc233f935" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RestrictedStockUnitsRSUMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_625bff06-cc12-4786-9206-96d3d52eb673" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember_f86b7213-fa9d-473c-a91f-35cbc233f935" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_NumberOfSharesContingentlyIssuable_4f367706-d248-48f5-82f7-a13926a7ed63" xlink:href="lcid-20240630.xsd#lcid_NumberOfSharesContingentlyIssuable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_7d3a0c81-1e67-4cc7-ba64-30f8e2326b82" xlink:to="loc_lcid_NumberOfSharesContingentlyIssuable_4f367706-d248-48f5-82f7-a13926a7ed63" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://lucidmotors.com/role/RELATEDPARTYTRANSACTIONSLeasesNarrativeDetails" xlink:type="simple" xlink:href="lcid-20240630.xsd#RELATEDPARTYTRANSACTIONSLeasesNarrativeDetails"/>
  <link:definitionLink xlink:role="http://lucidmotors.com/role/RELATEDPARTYTRANSACTIONSLeasesNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionLineItems_4adeb42e-d135-4046-abd8-22221ea3bb19" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_1814e69f-34ec-4ec7-a8ac-f1057faf73ec" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_4adeb42e-d135-4046-abd8-22221ea3bb19" xlink:to="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_1814e69f-34ec-4ec7-a8ac-f1057faf73ec" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionAxis_79d59f62-6ec9-4581-803e-a2b1d8e8c4ba" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_1814e69f-34ec-4ec7-a8ac-f1057faf73ec" xlink:to="loc_us-gaap_RelatedPartyTransactionAxis_79d59f62-6ec9-4581-803e-a2b1d8e8c4ba" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionDomain_79d59f62-6ec9-4581-803e-a2b1d8e8c4ba_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RelatedPartyTransactionAxis_79d59f62-6ec9-4581-803e-a2b1d8e8c4ba" xlink:to="loc_us-gaap_RelatedPartyTransactionDomain_79d59f62-6ec9-4581-803e-a2b1d8e8c4ba_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionDomain_f680d7d9-fe86-445e-9c3d-ce01829b6285" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RelatedPartyTransactionAxis_79d59f62-6ec9-4581-803e-a2b1d8e8c4ba" xlink:to="loc_us-gaap_RelatedPartyTransactionDomain_f680d7d9-fe86-445e-9c3d-ce01829b6285" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_KingAbdullahEconomicCityLeaseAgreementMember_8516e082-f7c0-418d-b421-d06c489c84db" xlink:href="lcid-20240630.xsd#lcid_KingAbdullahEconomicCityLeaseAgreementMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionDomain_f680d7d9-fe86-445e-9c3d-ce01829b6285" xlink:to="loc_lcid_KingAbdullahEconomicCityLeaseAgreementMember_8516e082-f7c0-418d-b421-d06c489c84db" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_KingAbdullahFinancialDistrictDevelopmentAndManagementCompanyMember_491a5f64-7683-4e54-9760-ae1f355b4b3c" xlink:href="lcid-20240630.xsd#lcid_KingAbdullahFinancialDistrictDevelopmentAndManagementCompanyMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionDomain_f680d7d9-fe86-445e-9c3d-ce01829b6285" xlink:to="loc_lcid_KingAbdullahFinancialDistrictDevelopmentAndManagementCompanyMember_491a5f64-7683-4e54-9760-ae1f355b4b3c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_214af868-27cd-4a99-9de9-a2ebcca25491" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_1814e69f-34ec-4ec7-a8ac-f1057faf73ec" xlink:to="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_214af868-27cd-4a99-9de9-a2ebcca25491" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_214af868-27cd-4a99-9de9-a2ebcca25491_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_214af868-27cd-4a99-9de9-a2ebcca25491" xlink:to="loc_us-gaap_RelatedPartyDomain_214af868-27cd-4a99-9de9-a2ebcca25491_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_adfe3e60-c66d-4d12-a9f8-d430acf54744" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_214af868-27cd-4a99-9de9-a2ebcca25491" xlink:to="loc_us-gaap_RelatedPartyDomain_adfe3e60-c66d-4d12-a9f8-d430acf54744" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyMember_c019436c-75ba-4cd8-8656-52f54e020f5f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain_adfe3e60-c66d-4d12-a9f8-d430acf54744" xlink:to="loc_us-gaap_RelatedPartyMember_c019436c-75ba-4cd8-8656-52f54e020f5f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LessorOperatingLeaseTermOfContract_af30be52-3d70-4205-aa6d-a9aeaddda85f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LessorOperatingLeaseTermOfContract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_4adeb42e-d135-4046-abd8-22221ea3bb19" xlink:to="loc_us-gaap_LessorOperatingLeaseTermOfContract_af30be52-3d70-4205-aa6d-a9aeaddda85f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseRightOfUseAsset_0940916c-685a-4c4d-bcd3-4e3e7165c45f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OperatingLeaseRightOfUseAsset"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_4adeb42e-d135-4046-abd8-22221ea3bb19" xlink:to="loc_us-gaap_OperatingLeaseRightOfUseAsset_0940916c-685a-4c4d-bcd3-4e3e7165c45f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiability_1e3de05b-80d1-42c1-9768-c26118f33c8b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OperatingLeaseLiability"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_4adeb42e-d135-4046-abd8-22221ea3bb19" xlink:to="loc_us-gaap_OperatingLeaseLiability_1e3de05b-80d1-42c1-9768-c26118f33c8b" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://lucidmotors.com/role/RELATEDPARTYTRANSACTIONSSIDFLoanAgreementNarrativeDetails" xlink:type="simple" xlink:href="lcid-20240630.xsd#RELATEDPARTYTRANSACTIONSSIDFLoanAgreementNarrativeDetails"/>
  <link:definitionLink xlink:role="http://lucidmotors.com/role/RELATEDPARTYTRANSACTIONSSIDFLoanAgreementNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionLineItems_97b31749-edcd-4837-a9eb-43d9f7e5a3ef" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_0d90fefc-18f7-4133-90eb-e26119ef0162" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_97b31749-edcd-4837-a9eb-43d9f7e5a3ef" xlink:to="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_0d90fefc-18f7-4133-90eb-e26119ef0162" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_fc664dbf-f3e7-4ddf-a0a5-bddf8593850a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_0d90fefc-18f7-4133-90eb-e26119ef0162" xlink:to="loc_us-gaap_DebtInstrumentAxis_fc664dbf-f3e7-4ddf-a0a5-bddf8593850a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_fc664dbf-f3e7-4ddf-a0a5-bddf8593850a_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_fc664dbf-f3e7-4ddf-a0a5-bddf8593850a" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_fc664dbf-f3e7-4ddf-a0a5-bddf8593850a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_3b69088c-ea23-4a87-b806-1a84668d2334" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_fc664dbf-f3e7-4ddf-a0a5-bddf8593850a" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_3b69088c-ea23-4a87-b806-1a84668d2334" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_SaudiIndustrialDevelopmentFundLoanAgreementMember_4017ce39-f70e-45da-a557-32b4b4dab72a" xlink:href="lcid-20240630.xsd#lcid_SaudiIndustrialDevelopmentFundLoanAgreementMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_3b69088c-ea23-4a87-b806-1a84668d2334" xlink:to="loc_lcid_SaudiIndustrialDevelopmentFundLoanAgreementMember_4017ce39-f70e-45da-a557-32b4b4dab72a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_f823d233-c6e9-446a-b962-ca9d1c73681e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_0d90fefc-18f7-4133-90eb-e26119ef0162" xlink:to="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_f823d233-c6e9-446a-b962-ca9d1c73681e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_f823d233-c6e9-446a-b962-ca9d1c73681e_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_f823d233-c6e9-446a-b962-ca9d1c73681e" xlink:to="loc_us-gaap_RelatedPartyDomain_f823d233-c6e9-446a-b962-ca9d1c73681e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_1ea3279f-0e91-4cd2-9619-45f91ccb68ca" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_f823d233-c6e9-446a-b962-ca9d1c73681e" xlink:to="loc_us-gaap_RelatedPartyDomain_1ea3279f-0e91-4cd2-9619-45f91ccb68ca" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyMember_8db92cd7-9977-4f42-95d1-d248bfe86982" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain_1ea3279f-0e91-4cd2-9619-45f91ccb68ca" xlink:to="loc_us-gaap_RelatedPartyMember_8db92cd7-9977-4f42-95d1-d248bfe86982" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionAxis_ce0c1b30-c024-42a5-9972-68d923db0ca7" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_0d90fefc-18f7-4133-90eb-e26119ef0162" xlink:to="loc_us-gaap_RelatedPartyTransactionAxis_ce0c1b30-c024-42a5-9972-68d923db0ca7" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionDomain_ce0c1b30-c024-42a5-9972-68d923db0ca7_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RelatedPartyTransactionAxis_ce0c1b30-c024-42a5-9972-68d923db0ca7" xlink:to="loc_us-gaap_RelatedPartyTransactionDomain_ce0c1b30-c024-42a5-9972-68d923db0ca7_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionDomain_8add656e-8c21-4275-bec2-e3c03fad58d3" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RelatedPartyTransactionAxis_ce0c1b30-c024-42a5-9972-68d923db0ca7" xlink:to="loc_us-gaap_RelatedPartyTransactionDomain_8add656e-8c21-4275-bec2-e3c03fad58d3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_SIDFLoanAgreementMember_dc83e07b-33d5-484e-a6f4-7979c1a89ecd" xlink:href="lcid-20240630.xsd#lcid_SIDFLoanAgreementMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionDomain_8add656e-8c21-4275-bec2-e3c03fad58d3" xlink:to="loc_lcid_SIDFLoanAgreementMember_dc83e07b-33d5-484e-a6f4-7979c1a89ecd" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentFaceAmount_abcc1268-2fdf-411b-ac1e-0c72c3ce2adb" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentFaceAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_97b31749-edcd-4837-a9eb-43d9f7e5a3ef" xlink:to="loc_us-gaap_DebtInstrumentFaceAmount_abcc1268-2fdf-411b-ac1e-0c72c3ce2adb" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://lucidmotors.com/role/RELATEDPARTYTRANSACTIONSMISAAgreementsNarrativeDetails" xlink:type="simple" xlink:href="lcid-20240630.xsd#RELATEDPARTYTRANSACTIONSMISAAgreementsNarrativeDetails"/>
  <link:definitionLink xlink:role="http://lucidmotors.com/role/RELATEDPARTYTRANSACTIONSMISAAgreementsNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionLineItems_8e36e4db-0613-4e94-a024-468f3a39edbf" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_f113e08b-9c5a-4dd9-a9a7-45c44b73675a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_8e36e4db-0613-4e94-a024-468f3a39edbf" xlink:to="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_f113e08b-9c5a-4dd9-a9a7-45c44b73675a" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CounterpartyNameAxis_a5d0d732-3558-4874-a59d-834f033155b0" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_CounterpartyNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_f113e08b-9c5a-4dd9-a9a7-45c44b73675a" xlink:to="loc_srt_CounterpartyNameAxis_a5d0d732-3558-4874-a59d-834f033155b0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_a5d0d732-3558-4874-a59d-834f033155b0_default" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_CounterpartyNameAxis_a5d0d732-3558-4874-a59d-834f033155b0" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_a5d0d732-3558-4874-a59d-834f033155b0_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_46f3158c-7056-489e-87e5-1a3d68639da2" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_CounterpartyNameAxis_a5d0d732-3558-4874-a59d-834f033155b0" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_46f3158c-7056-489e-87e5-1a3d68639da2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_MinistryOfInvestmentOfSaudiArabiaMember_f2de79c4-a1f8-4926-a751-71ca60a875ad" xlink:href="lcid-20240630.xsd#lcid_MinistryOfInvestmentOfSaudiArabiaMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RepurchaseAgreementCounterpartyNameDomain_46f3158c-7056-489e-87e5-1a3d68639da2" xlink:to="loc_lcid_MinistryOfInvestmentOfSaudiArabiaMember_f2de79c4-a1f8-4926-a751-71ca60a875ad" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionAxis_3a38520e-950d-4ad9-8e82-2f91dfdba73e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_f113e08b-9c5a-4dd9-a9a7-45c44b73675a" xlink:to="loc_us-gaap_RelatedPartyTransactionAxis_3a38520e-950d-4ad9-8e82-2f91dfdba73e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionDomain_3a38520e-950d-4ad9-8e82-2f91dfdba73e_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RelatedPartyTransactionAxis_3a38520e-950d-4ad9-8e82-2f91dfdba73e" xlink:to="loc_us-gaap_RelatedPartyTransactionDomain_3a38520e-950d-4ad9-8e82-2f91dfdba73e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionDomain_17a62204-dfe0-4e86-874d-25db54896345" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RelatedPartyTransactionAxis_3a38520e-950d-4ad9-8e82-2f91dfdba73e" xlink:to="loc_us-gaap_RelatedPartyTransactionDomain_17a62204-dfe0-4e86-874d-25db54896345" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_MISAAgreementAMP2Member_ea23e269-7a44-4a3d-9a2d-86643c1ef27c" xlink:href="lcid-20240630.xsd#lcid_MISAAgreementAMP2Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionDomain_17a62204-dfe0-4e86-874d-25db54896345" xlink:to="loc_lcid_MISAAgreementAMP2Member_ea23e269-7a44-4a3d-9a2d-86643c1ef27c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_MISAAgreementGovernmentGrantMember_0c66fdcc-7c3b-4ed2-aea4-a5dbab89c21b" xlink:href="lcid-20240630.xsd#lcid_MISAAgreementGovernmentGrantMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionDomain_17a62204-dfe0-4e86-874d-25db54896345" xlink:to="loc_lcid_MISAAgreementGovernmentGrantMember_0c66fdcc-7c3b-4ed2-aea4-a5dbab89c21b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_714d3718-7f94-49a2-9772-794a78065bf3" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_f113e08b-9c5a-4dd9-a9a7-45c44b73675a" xlink:to="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_714d3718-7f94-49a2-9772-794a78065bf3" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_714d3718-7f94-49a2-9772-794a78065bf3_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_714d3718-7f94-49a2-9772-794a78065bf3" xlink:to="loc_us-gaap_RelatedPartyDomain_714d3718-7f94-49a2-9772-794a78065bf3_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_498b15b5-80b1-445b-a331-e757f466a82a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_714d3718-7f94-49a2-9772-794a78065bf3" xlink:to="loc_us-gaap_RelatedPartyDomain_498b15b5-80b1-445b-a331-e757f466a82a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyMember_4936c796-db9a-4590-b5c1-6df5b64ab30b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain_498b15b5-80b1-445b-a331-e757f466a82a" xlink:to="loc_us-gaap_RelatedPartyMember_4936c796-db9a-4590-b5c1-6df5b64ab30b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BalanceSheetLocationAxis_21ce3c90-447a-4992-a7f6-487cdf147b3c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BalanceSheetLocationAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_f113e08b-9c5a-4dd9-a9a7-45c44b73675a" xlink:to="loc_us-gaap_BalanceSheetLocationAxis_21ce3c90-447a-4992-a7f6-487cdf147b3c" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BalanceSheetLocationDomain_21ce3c90-447a-4992-a7f6-487cdf147b3c_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BalanceSheetLocationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BalanceSheetLocationAxis_21ce3c90-447a-4992-a7f6-487cdf147b3c" xlink:to="loc_us-gaap_BalanceSheetLocationDomain_21ce3c90-447a-4992-a7f6-487cdf147b3c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BalanceSheetLocationDomain_2b6080df-9307-48e5-a681-df16ad55cd7c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BalanceSheetLocationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BalanceSheetLocationAxis_21ce3c90-447a-4992-a7f6-487cdf147b3c" xlink:to="loc_us-gaap_BalanceSheetLocationDomain_2b6080df-9307-48e5-a681-df16ad55cd7c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNoncurrentLiabilitiesMember_5085e2cd-822a-4281-baed-38c91140c8a0" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherNoncurrentLiabilitiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_2b6080df-9307-48e5-a681-df16ad55cd7c" xlink:to="loc_us-gaap_OtherNoncurrentLiabilitiesMember_5085e2cd-822a-4281-baed-38c91140c8a0" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNoncurrentAssetsMember_4f23a812-02e1-47a7-b478-3c544ff20505" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherNoncurrentAssetsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_2b6080df-9307-48e5-a681-df16ad55cd7c" xlink:to="loc_us-gaap_OtherNoncurrentAssetsMember_4f23a812-02e1-47a7-b478-3c544ff20505" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_775871a8-0190-4d08-9926-1220c89f07d6" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_f113e08b-9c5a-4dd9-a9a7-45c44b73675a" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_775871a8-0190-4d08-9926-1220c89f07d6" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_775871a8-0190-4d08-9926-1220c89f07d6_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_775871a8-0190-4d08-9926-1220c89f07d6" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_775871a8-0190-4d08-9926-1220c89f07d6_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_d01d6676-4d94-4d83-b380-656a48a41170" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_775871a8-0190-4d08-9926-1220c89f07d6" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_d01d6676-4d94-4d83-b380-656a48a41170" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_AMP2ConstructionInProgressBalanceMember_8b658837-cb05-4bdb-85fb-f766cba7b5bd" xlink:href="lcid-20240630.xsd#lcid_AMP2ConstructionInProgressBalanceMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_d01d6676-4d94-4d83-b380-656a48a41170" xlink:to="loc_lcid_AMP2ConstructionInProgressBalanceMember_8b658837-cb05-4bdb-85fb-f766cba7b5bd" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_AMP2FixedAssetAndAMP2ConstructionInProgressBalanceMember_369d5646-fb24-400d-abd0-6050066f88db" xlink:href="lcid-20240630.xsd#lcid_AMP2FixedAssetAndAMP2ConstructionInProgressBalanceMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_d01d6676-4d94-4d83-b380-656a48a41170" xlink:to="loc_lcid_AMP2FixedAssetAndAMP2ConstructionInProgressBalanceMember_369d5646-fb24-400d-abd0-6050066f88db" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_RelatedPartyTransactionThresholdPeriodForSuspensionOfFundingOperationCommencement_a97824ff-fa72-4254-958d-11a11e1139f5" xlink:href="lcid-20240630.xsd#lcid_RelatedPartyTransactionThresholdPeriodForSuspensionOfFundingOperationCommencement"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_8e36e4db-0613-4e94-a024-468f3a39edbf" xlink:to="loc_lcid_RelatedPartyTransactionThresholdPeriodForSuspensionOfFundingOperationCommencement_a97824ff-fa72-4254-958d-11a11e1139f5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_RelatedPartyTransactionThresholdPeriodForSuspensionOfFundingAttainmentOfAgreedScopeOfOperations_a5085b4a-65f1-4cbd-b6ab-d959ce23111c" xlink:href="lcid-20240630.xsd#lcid_RelatedPartyTransactionThresholdPeriodForSuspensionOfFundingAttainmentOfAgreedScopeOfOperations"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_8e36e4db-0613-4e94-a024-468f3a39edbf" xlink:to="loc_lcid_RelatedPartyTransactionThresholdPeriodForSuspensionOfFundingAttainmentOfAgreedScopeOfOperations_a5085b4a-65f1-4cbd-b6ab-d959ce23111c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionAmountsOfTransaction_040b3ac4-affd-4425-a0c3-75390608dfa5" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionAmountsOfTransaction"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_8e36e4db-0613-4e94-a024-468f3a39edbf" xlink:to="loc_us-gaap_RelatedPartyTransactionAmountsOfTransaction_040b3ac4-affd-4425-a0c3-75390608dfa5" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://lucidmotors.com/role/RELATEDPARTYTRANSACTIONSGIBFacilityAgreementNarrativeDetails" xlink:type="simple" xlink:href="lcid-20240630.xsd#RELATEDPARTYTRANSACTIONSGIBFacilityAgreementNarrativeDetails"/>
  <link:definitionLink xlink:role="http://lucidmotors.com/role/RELATEDPARTYTRANSACTIONSGIBFacilityAgreementNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionLineItems_3244a9eb-e6b0-45e9-b571-dabef75bf140" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_8d4d97f6-7948-495a-8b99-8299a80701c6" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_3244a9eb-e6b0-45e9-b571-dabef75bf140" xlink:to="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_8d4d97f6-7948-495a-8b99-8299a80701c6" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_7eab9059-7b89-49ea-8189-3dcced140cc0" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_8d4d97f6-7948-495a-8b99-8299a80701c6" xlink:to="loc_us-gaap_DebtInstrumentAxis_7eab9059-7b89-49ea-8189-3dcced140cc0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_7eab9059-7b89-49ea-8189-3dcced140cc0_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_7eab9059-7b89-49ea-8189-3dcced140cc0" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_7eab9059-7b89-49ea-8189-3dcced140cc0_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_0db3a3ab-3d88-4816-a322-e9ef13101f80" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_7eab9059-7b89-49ea-8189-3dcced140cc0" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_0db3a3ab-3d88-4816-a322-e9ef13101f80" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_GIBFacilityAgreementMember_12c3a7df-ca9f-45ec-8612-cc5b5ae03e71" xlink:href="lcid-20240630.xsd#lcid_GIBFacilityAgreementMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_0db3a3ab-3d88-4816-a322-e9ef13101f80" xlink:to="loc_lcid_GIBFacilityAgreementMember_12c3a7df-ca9f-45ec-8612-cc5b5ae03e71" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_AmendedGIBFacilityAgreementMember_b2ea35b5-0765-42d0-bb5a-38c085918c73" xlink:href="lcid-20240630.xsd#lcid_AmendedGIBFacilityAgreementMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_0db3a3ab-3d88-4816-a322-e9ef13101f80" xlink:to="loc_lcid_AmendedGIBFacilityAgreementMember_b2ea35b5-0765-42d0-bb5a-38c085918c73" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_4c1f7a65-bec5-4359-8d38-b4c5deb59647" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_8d4d97f6-7948-495a-8b99-8299a80701c6" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_4c1f7a65-bec5-4359-8d38-b4c5deb59647" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_4c1f7a65-bec5-4359-8d38-b4c5deb59647_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_4c1f7a65-bec5-4359-8d38-b4c5deb59647" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_4c1f7a65-bec5-4359-8d38-b4c5deb59647_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_a46edc53-32ee-4820-9f26-96ab727dc2a8" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_4c1f7a65-bec5-4359-8d38-b4c5deb59647" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_a46edc53-32ee-4820-9f26-96ab727dc2a8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditMember_5d83e865-db57-4c8a-9f12-94e1823fc04b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LineOfCreditMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_a46edc53-32ee-4820-9f26-96ab727dc2a8" xlink:to="loc_us-gaap_LineOfCreditMember_5d83e865-db57-4c8a-9f12-94e1823fc04b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionAxis_7f19eb5e-02ee-42fe-9da2-daa3577cb7a3" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_8d4d97f6-7948-495a-8b99-8299a80701c6" xlink:to="loc_us-gaap_RelatedPartyTransactionAxis_7f19eb5e-02ee-42fe-9da2-daa3577cb7a3" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionDomain_7f19eb5e-02ee-42fe-9da2-daa3577cb7a3_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RelatedPartyTransactionAxis_7f19eb5e-02ee-42fe-9da2-daa3577cb7a3" xlink:to="loc_us-gaap_RelatedPartyTransactionDomain_7f19eb5e-02ee-42fe-9da2-daa3577cb7a3_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionDomain_59607e37-10ad-49e0-9d1f-7d39c9a0e704" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RelatedPartyTransactionAxis_7f19eb5e-02ee-42fe-9da2-daa3577cb7a3" xlink:to="loc_us-gaap_RelatedPartyTransactionDomain_59607e37-10ad-49e0-9d1f-7d39c9a0e704" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_GIBFacilityAgreementMember_d3bc666c-068a-447b-9aee-0ba78961ec16" xlink:href="lcid-20240630.xsd#lcid_GIBFacilityAgreementMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionDomain_59607e37-10ad-49e0-9d1f-7d39c9a0e704" xlink:to="loc_lcid_GIBFacilityAgreementMember_d3bc666c-068a-447b-9aee-0ba78961ec16" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_812d3ead-26c9-478a-b7c1-ee7a101bb6a2" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_8d4d97f6-7948-495a-8b99-8299a80701c6" xlink:to="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_812d3ead-26c9-478a-b7c1-ee7a101bb6a2" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_812d3ead-26c9-478a-b7c1-ee7a101bb6a2_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_812d3ead-26c9-478a-b7c1-ee7a101bb6a2" xlink:to="loc_us-gaap_RelatedPartyDomain_812d3ead-26c9-478a-b7c1-ee7a101bb6a2_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_58103083-3a3c-4354-a4a1-8ccea28cb914" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_812d3ead-26c9-478a-b7c1-ee7a101bb6a2" xlink:to="loc_us-gaap_RelatedPartyDomain_58103083-3a3c-4354-a4a1-8ccea28cb914" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyMember_3037e8f3-5224-4495-91a5-9da39f995835" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain_58103083-3a3c-4354-a4a1-8ccea28cb914" xlink:to="loc_us-gaap_RelatedPartyMember_3037e8f3-5224-4495-91a5-9da39f995835" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityAxis_d4ffef04-bfaa-4b4c-b96b-e950ecaed05f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CreditFacilityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_8d4d97f6-7948-495a-8b99-8299a80701c6" xlink:to="loc_us-gaap_CreditFacilityAxis_d4ffef04-bfaa-4b4c-b96b-e950ecaed05f" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_d4ffef04-bfaa-4b4c-b96b-e950ecaed05f_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_CreditFacilityAxis_d4ffef04-bfaa-4b4c-b96b-e950ecaed05f" xlink:to="loc_us-gaap_CreditFacilityDomain_d4ffef04-bfaa-4b4c-b96b-e950ecaed05f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_ce70d911-62e1-4040-acfc-f068a4d9edf0" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_CreditFacilityAxis_d4ffef04-bfaa-4b4c-b96b-e950ecaed05f" xlink:to="loc_us-gaap_CreditFacilityDomain_ce70d911-62e1-4040-acfc-f068a4d9edf0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevolvingCreditFacilityMember_09be06a5-cfa3-48e5-acf1-dd60dc9f0fe4" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RevolvingCreditFacilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_ce70d911-62e1-4040-acfc-f068a4d9edf0" xlink:to="loc_us-gaap_RevolvingCreditFacilityMember_09be06a5-cfa3-48e5-acf1-dd60dc9f0fe4" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_LineOfCreditFacilityNumberOfFacilities_8841b700-ec0a-44f1-abd2-1f92a6a8dcbc" xlink:href="lcid-20240630.xsd#lcid_LineOfCreditFacilityNumberOfFacilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_3244a9eb-e6b0-45e9-b571-dabef75bf140" xlink:to="loc_lcid_LineOfCreditFacilityNumberOfFacilities_8841b700-ec0a-44f1-abd2-1f92a6a8dcbc" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_afd6cdac-0d6c-4171-a89b-56bc711f4099" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_3244a9eb-e6b0-45e9-b571-dabef75bf140" xlink:to="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_afd6cdac-0d6c-4171-a89b-56bc711f4099" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://lucidmotors.com/role/RELATEDPARTYTRANSACTIONSConstructionServiceContractNarrativeDetails" xlink:type="simple" xlink:href="lcid-20240630.xsd#RELATEDPARTYTRANSACTIONSConstructionServiceContractNarrativeDetails"/>
  <link:definitionLink xlink:role="http://lucidmotors.com/role/RELATEDPARTYTRANSACTIONSConstructionServiceContractNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionLineItems_6e6350a1-33b2-489b-a9a1-fbf81837f7e3" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_13e33216-5eae-47eb-8a1f-17ea5e090536" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_6e6350a1-33b2-489b-a9a1-fbf81837f7e3" xlink:to="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_13e33216-5eae-47eb-8a1f-17ea5e090536" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CounterpartyNameAxis_ab114d87-f6f6-472a-b141-e8cfcce9c6ed" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_CounterpartyNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_13e33216-5eae-47eb-8a1f-17ea5e090536" xlink:to="loc_srt_CounterpartyNameAxis_ab114d87-f6f6-472a-b141-e8cfcce9c6ed" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_ab114d87-f6f6-472a-b141-e8cfcce9c6ed_default" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_CounterpartyNameAxis_ab114d87-f6f6-472a-b141-e8cfcce9c6ed" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_ab114d87-f6f6-472a-b141-e8cfcce9c6ed_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_7a7e0c49-91df-4417-8df2-23a9d784dc69" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_CounterpartyNameAxis_ab114d87-f6f6-472a-b141-e8cfcce9c6ed" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_7a7e0c49-91df-4417-8df2-23a9d784dc69" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_AlBawaniCompanyLimitedMember_93e5bdf3-a78a-4c06-8f6e-eb6e7c1ca4a6" xlink:href="lcid-20240630.xsd#lcid_AlBawaniCompanyLimitedMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RepurchaseAgreementCounterpartyNameDomain_7a7e0c49-91df-4417-8df2-23a9d784dc69" xlink:to="loc_lcid_AlBawaniCompanyLimitedMember_93e5bdf3-a78a-4c06-8f6e-eb6e7c1ca4a6" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionAxis_3e28d08a-60f9-4f14-a13e-e18d9920cbec" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_13e33216-5eae-47eb-8a1f-17ea5e090536" xlink:to="loc_us-gaap_RelatedPartyTransactionAxis_3e28d08a-60f9-4f14-a13e-e18d9920cbec" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionDomain_3e28d08a-60f9-4f14-a13e-e18d9920cbec_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RelatedPartyTransactionAxis_3e28d08a-60f9-4f14-a13e-e18d9920cbec" xlink:to="loc_us-gaap_RelatedPartyTransactionDomain_3e28d08a-60f9-4f14-a13e-e18d9920cbec_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionDomain_77b20875-d6cd-44e0-b592-3ee99f5feb2d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RelatedPartyTransactionAxis_3e28d08a-60f9-4f14-a13e-e18d9920cbec" xlink:to="loc_us-gaap_RelatedPartyTransactionDomain_77b20875-d6cd-44e0-b592-3ee99f5feb2d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_ConstructionServiceContractMember_8aa76ed6-6fb4-4b22-94c6-61498483466f" xlink:href="lcid-20240630.xsd#lcid_ConstructionServiceContractMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionDomain_77b20875-d6cd-44e0-b592-3ee99f5feb2d" xlink:to="loc_lcid_ConstructionServiceContractMember_8aa76ed6-6fb4-4b22-94c6-61498483466f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_8c5419b4-307c-4bf8-9eab-d02cc26e5f37" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_13e33216-5eae-47eb-8a1f-17ea5e090536" xlink:to="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_8c5419b4-307c-4bf8-9eab-d02cc26e5f37" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_8c5419b4-307c-4bf8-9eab-d02cc26e5f37_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_8c5419b4-307c-4bf8-9eab-d02cc26e5f37" xlink:to="loc_us-gaap_RelatedPartyDomain_8c5419b4-307c-4bf8-9eab-d02cc26e5f37_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_8013a1d7-777e-4eec-a87a-6499add40c3a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_8c5419b4-307c-4bf8-9eab-d02cc26e5f37" xlink:to="loc_us-gaap_RelatedPartyDomain_8013a1d7-777e-4eec-a87a-6499add40c3a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyMember_2c9b7a63-502e-4b4c-abe7-321c10b19bbd" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain_8013a1d7-777e-4eec-a87a-6499add40c3a" xlink:to="loc_us-gaap_RelatedPartyMember_2c9b7a63-502e-4b4c-abe7-321c10b19bbd" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionAmountsOfTransaction_ac7c828b-6299-47d3-b351-725b23889c2f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionAmountsOfTransaction"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_6e6350a1-33b2-489b-a9a1-fbf81837f7e3" xlink:to="loc_us-gaap_RelatedPartyTransactionAmountsOfTransaction_ac7c828b-6299-47d3-b351-725b23889c2f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableCurrent_b675b82f-145e-48fc-855b-31a55b34a39f" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccountsPayableCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_6e6350a1-33b2-489b-a9a1-fbf81837f7e3" xlink:to="loc_us-gaap_AccountsPayableCurrent_b675b82f-145e-48fc-855b-31a55b34a39f" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://lucidmotors.com/role/RELATEDPARTYTRANSACTIONSSubscriptionAgreementNarrativeDetails" xlink:type="simple" xlink:href="lcid-20240630.xsd#RELATEDPARTYTRANSACTIONSSubscriptionAgreementNarrativeDetails"/>
  <link:definitionLink xlink:role="http://lucidmotors.com/role/RELATEDPARTYTRANSACTIONSSubscriptionAgreementNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionLineItems_5fc6fd66-c09b-4e63-8a31-7186c82a8c62" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_8133dfcf-7a4c-43b6-9db2-dac9126c106e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_5fc6fd66-c09b-4e63-8a31-7186c82a8c62" xlink:to="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_8133dfcf-7a4c-43b6-9db2-dac9126c106e" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CounterpartyNameAxis_00f70b92-9329-447f-98e8-e3f5374d63e0" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_CounterpartyNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_8133dfcf-7a4c-43b6-9db2-dac9126c106e" xlink:to="loc_srt_CounterpartyNameAxis_00f70b92-9329-447f-98e8-e3f5374d63e0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_00f70b92-9329-447f-98e8-e3f5374d63e0_default" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_CounterpartyNameAxis_00f70b92-9329-447f-98e8-e3f5374d63e0" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_00f70b92-9329-447f-98e8-e3f5374d63e0_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_28f22c61-09f5-4b02-b217-0feee5de1cbc" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_CounterpartyNameAxis_00f70b92-9329-447f-98e8-e3f5374d63e0" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_28f22c61-09f5-4b02-b217-0feee5de1cbc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_AyarThirdInvestmentCompanyMember_c2559453-9c53-4269-aa19-a9887b96899b" xlink:href="lcid-20240630.xsd#lcid_AyarThirdInvestmentCompanyMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RepurchaseAgreementCounterpartyNameDomain_28f22c61-09f5-4b02-b217-0feee5de1cbc" xlink:to="loc_lcid_AyarThirdInvestmentCompanyMember_c2559453-9c53-4269-aa19-a9887b96899b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsidiarySaleOfStockAxis_8361c12c-5c16-453e-8862-65c029ff9f25" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsidiarySaleOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_8133dfcf-7a4c-43b6-9db2-dac9126c106e" xlink:to="loc_us-gaap_SubsidiarySaleOfStockAxis_8361c12c-5c16-453e-8862-65c029ff9f25" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNameOfTransactionDomain_8361c12c-5c16-453e-8862-65c029ff9f25_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SaleOfStockNameOfTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsidiarySaleOfStockAxis_8361c12c-5c16-453e-8862-65c029ff9f25" xlink:to="loc_us-gaap_SaleOfStockNameOfTransactionDomain_8361c12c-5c16-453e-8862-65c029ff9f25_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNameOfTransactionDomain_6f3bece7-98da-4946-b9e6-63a5a43caf16" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SaleOfStockNameOfTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsidiarySaleOfStockAxis_8361c12c-5c16-453e-8862-65c029ff9f25" xlink:to="loc_us-gaap_SaleOfStockNameOfTransactionDomain_6f3bece7-98da-4946-b9e6-63a5a43caf16" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_A2023SubscriptionAgreementMember_df3adefc-f312-4a90-b6e7-55f714c67b10" xlink:href="lcid-20240630.xsd#lcid_A2023SubscriptionAgreementMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SaleOfStockNameOfTransactionDomain_6f3bece7-98da-4946-b9e6-63a5a43caf16" xlink:to="loc_lcid_A2023SubscriptionAgreementMember_df3adefc-f312-4a90-b6e7-55f714c67b10" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_SeriesASubscriptionAgreementMember_1ab773a7-b622-476b-ba93-56a0de089fad" xlink:href="lcid-20240630.xsd#lcid_SeriesASubscriptionAgreementMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SaleOfStockNameOfTransactionDomain_6f3bece7-98da-4946-b9e6-63a5a43caf16" xlink:to="loc_lcid_SeriesASubscriptionAgreementMember_1ab773a7-b622-476b-ba93-56a0de089fad" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_53520dc9-8315-4e68-827f-b7e3caaf6d61" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_8133dfcf-7a4c-43b6-9db2-dac9126c106e" xlink:to="loc_us-gaap_StatementClassOfStockAxis_53520dc9-8315-4e68-827f-b7e3caaf6d61" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_53520dc9-8315-4e68-827f-b7e3caaf6d61_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_53520dc9-8315-4e68-827f-b7e3caaf6d61" xlink:to="loc_us-gaap_ClassOfStockDomain_53520dc9-8315-4e68-827f-b7e3caaf6d61_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_5d8cef34-2a0d-42f7-9a55-ec5a62d8e163" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_53520dc9-8315-4e68-827f-b7e3caaf6d61" xlink:to="loc_us-gaap_ClassOfStockDomain_5d8cef34-2a0d-42f7-9a55-ec5a62d8e163" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RedeemableConvertiblePreferredStockMember_aced237a-c639-4e0c-92e5-851747b51bf7" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RedeemableConvertiblePreferredStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_5d8cef34-2a0d-42f7-9a55-ec5a62d8e163" xlink:to="loc_us-gaap_RedeemableConvertiblePreferredStockMember_aced237a-c639-4e0c-92e5-851747b51bf7" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_8e866cc9-def5-495d-8a81-329844375731" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_5fc6fd66-c09b-4e63-8a31-7186c82a8c62" xlink:to="loc_us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_8e866cc9-def5-495d-8a81-329844375731" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockPricePerShare_cfaceb98-aab4-4f2c-b8e1-9f05c042b3a4" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SaleOfStockPricePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_5fc6fd66-c09b-4e63-8a31-7186c82a8c62" xlink:to="loc_us-gaap_SaleOfStockPricePerShare_cfaceb98-aab4-4f2c-b8e1-9f05c042b3a4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_SaleOfStockConsiderationToReceiveOnTransaction_73c5dc49-3b70-40d7-b92c-3a98f5e9fe77" xlink:href="lcid-20240630.xsd#lcid_SaleOfStockConsiderationToReceiveOnTransaction"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_5fc6fd66-c09b-4e63-8a31-7186c82a8c62" xlink:to="loc_lcid_SaleOfStockConsiderationToReceiveOnTransaction_73c5dc49-3b70-40d7-b92c-3a98f5e9fe77" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockConsiderationReceivedOnTransaction_9bd3c7cc-4e4f-4ed9-b07d-3ed429c1fc01" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SaleOfStockConsiderationReceivedOnTransaction"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_5fc6fd66-c09b-4e63-8a31-7186c82a8c62" xlink:to="loc_us-gaap_SaleOfStockConsiderationReceivedOnTransaction_9bd3c7cc-4e4f-4ed9-b07d-3ed429c1fc01" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfStockIssuanceCosts_67073a63-6449-434d-b5e1-248e80ea27b7" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PaymentsOfStockIssuanceCosts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_5fc6fd66-c09b-4e63-8a31-7186c82a8c62" xlink:to="loc_us-gaap_PaymentsOfStockIssuanceCosts_67073a63-6449-434d-b5e1-248e80ea27b7" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_SaleOfStockGrossConsiderationReceivedOnTransaction_7e610b85-dfc1-438e-8ed6-1bf80ba74fa0" xlink:href="lcid-20240630.xsd#lcid_SaleOfStockGrossConsiderationReceivedOnTransaction"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_5fc6fd66-c09b-4e63-8a31-7186c82a8c62" xlink:to="loc_lcid_SaleOfStockGrossConsiderationReceivedOnTransaction_7e610b85-dfc1-438e-8ed6-1bf80ba74fa0" xlink:type="arc" order="5"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://lucidmotors.com/role/RELATEDPARTYTRANSACTIONSHumanResourcesDevelopmentFundHRDFJointCooperationAgreementNarrativeDetails" xlink:type="simple" xlink:href="lcid-20240630.xsd#RELATEDPARTYTRANSACTIONSHumanResourcesDevelopmentFundHRDFJointCooperationAgreementNarrativeDetails"/>
  <link:definitionLink xlink:role="http://lucidmotors.com/role/RELATEDPARTYTRANSACTIONSHumanResourcesDevelopmentFundHRDFJointCooperationAgreementNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionLineItems_c21fddd1-64d9-4a39-af2c-d42f0143c710" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_67e16b44-5c99-4bc0-b760-0f51fe58c10b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_c21fddd1-64d9-4a39-af2c-d42f0143c710" xlink:to="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_67e16b44-5c99-4bc0-b760-0f51fe58c10b" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CounterpartyNameAxis_6f2a3c93-b02a-47c4-944f-22e485a3c863" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_CounterpartyNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_67e16b44-5c99-4bc0-b760-0f51fe58c10b" xlink:to="loc_srt_CounterpartyNameAxis_6f2a3c93-b02a-47c4-944f-22e485a3c863" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_6f2a3c93-b02a-47c4-944f-22e485a3c863_default" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_CounterpartyNameAxis_6f2a3c93-b02a-47c4-944f-22e485a3c863" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_6f2a3c93-b02a-47c4-944f-22e485a3c863_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_a9dbc2d3-eec1-4531-b3cf-ca0eeb4c43f4" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_CounterpartyNameAxis_6f2a3c93-b02a-47c4-944f-22e485a3c863" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_a9dbc2d3-eec1-4531-b3cf-ca0eeb4c43f4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_HumanResourcesDevelopmentFundMember_75aca729-4b8c-4cb4-89e3-dc8543384034" xlink:href="lcid-20240630.xsd#lcid_HumanResourcesDevelopmentFundMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RepurchaseAgreementCounterpartyNameDomain_a9dbc2d3-eec1-4531-b3cf-ca0eeb4c43f4" xlink:to="loc_lcid_HumanResourcesDevelopmentFundMember_75aca729-4b8c-4cb4-89e3-dc8543384034" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionAxis_b28a3f7c-9468-4a44-90f5-b29b36c9d42d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_67e16b44-5c99-4bc0-b760-0f51fe58c10b" xlink:to="loc_us-gaap_RelatedPartyTransactionAxis_b28a3f7c-9468-4a44-90f5-b29b36c9d42d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionDomain_b28a3f7c-9468-4a44-90f5-b29b36c9d42d_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RelatedPartyTransactionAxis_b28a3f7c-9468-4a44-90f5-b29b36c9d42d" xlink:to="loc_us-gaap_RelatedPartyTransactionDomain_b28a3f7c-9468-4a44-90f5-b29b36c9d42d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionDomain_fc6dd7c0-f37a-4924-85e4-a1996d1f7896" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RelatedPartyTransactionAxis_b28a3f7c-9468-4a44-90f5-b29b36c9d42d" xlink:to="loc_us-gaap_RelatedPartyTransactionDomain_fc6dd7c0-f37a-4924-85e4-a1996d1f7896" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_HumanResourcesDevelopmentFundTrainingReimbursementAgreementMember_15ab1b89-24de-4db8-b445-567ba251e976" xlink:href="lcid-20240630.xsd#lcid_HumanResourcesDevelopmentFundTrainingReimbursementAgreementMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionDomain_fc6dd7c0-f37a-4924-85e4-a1996d1f7896" xlink:to="loc_lcid_HumanResourcesDevelopmentFundTrainingReimbursementAgreementMember_15ab1b89-24de-4db8-b445-567ba251e976" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_f9d04182-6631-43a0-acd4-5fbc1af56013" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_67e16b44-5c99-4bc0-b760-0f51fe58c10b" xlink:to="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_f9d04182-6631-43a0-acd4-5fbc1af56013" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_f9d04182-6631-43a0-acd4-5fbc1af56013_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_f9d04182-6631-43a0-acd4-5fbc1af56013" xlink:to="loc_us-gaap_RelatedPartyDomain_f9d04182-6631-43a0-acd4-5fbc1af56013_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_70a0159f-68b7-4b59-b552-72606774d606" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_f9d04182-6631-43a0-acd4-5fbc1af56013" xlink:to="loc_us-gaap_RelatedPartyDomain_70a0159f-68b7-4b59-b552-72606774d606" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyMember_1352045e-7ecf-4127-9ca8-404a767687ee" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain_70a0159f-68b7-4b59-b552-72606774d606" xlink:to="loc_us-gaap_RelatedPartyMember_1352045e-7ecf-4127-9ca8-404a767687ee" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionAmountsOfTransaction_da7074dd-af38-4e90-86d6-3e02551a60b3" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionAmountsOfTransaction"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_c21fddd1-64d9-4a39-af2c-d42f0143c710" xlink:to="loc_us-gaap_RelatedPartyTransactionAmountsOfTransaction_da7074dd-af38-4e90-86d6-3e02551a60b3" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesCurrent_24c5e5aa-6d09-4d5d-a8ea-47e578c77254" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherLiabilitiesCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_c21fddd1-64d9-4a39-af2c-d42f0143c710" xlink:to="loc_us-gaap_OtherLiabilitiesCurrent_24c5e5aa-6d09-4d5d-a8ea-47e578c77254" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://lucidmotors.com/role/RELATEDPARTYTRANSACTIONSEVPurchaseAgreementNarrativeDetails" xlink:type="simple" xlink:href="lcid-20240630.xsd#RELATEDPARTYTRANSACTIONSEVPurchaseAgreementNarrativeDetails"/>
  <link:definitionLink xlink:role="http://lucidmotors.com/role/RELATEDPARTYTRANSACTIONSEVPurchaseAgreementNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionLineItems_d4d7b761-8917-4db2-a1b5-4d7d3de97914" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_33a38ca4-7295-46e6-ab9b-c395dc384c3c" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_d4d7b761-8917-4db2-a1b5-4d7d3de97914" xlink:to="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_33a38ca4-7295-46e6-ab9b-c395dc384c3c" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductOrServiceAxis_cdae4246-394b-4ab1-934f-02a4fc8110e0" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_ProductOrServiceAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_33a38ca4-7295-46e6-ab9b-c395dc384c3c" xlink:to="loc_srt_ProductOrServiceAxis_cdae4246-394b-4ab1-934f-02a4fc8110e0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_cdae4246-394b-4ab1-934f-02a4fc8110e0_default" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ProductOrServiceAxis_cdae4246-394b-4ab1-934f-02a4fc8110e0" xlink:to="loc_srt_ProductsAndServicesDomain_cdae4246-394b-4ab1-934f-02a4fc8110e0_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_515ecde6-68ec-44ac-876d-9fa69e7b88ea" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ProductOrServiceAxis_cdae4246-394b-4ab1-934f-02a4fc8110e0" xlink:to="loc_srt_ProductsAndServicesDomain_515ecde6-68ec-44ac-876d-9fa69e7b88ea" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_ElectricVehiclePurchaseAgreementMember_b683cf97-75d5-4946-9012-6bb562c3a03e" xlink:href="lcid-20240630.xsd#lcid_ElectricVehiclePurchaseAgreementMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_515ecde6-68ec-44ac-876d-9fa69e7b88ea" xlink:to="loc_lcid_ElectricVehiclePurchaseAgreementMember_b683cf97-75d5-4946-9012-6bb562c3a03e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_da886728-8391-4b86-a7ef-a6838d75fe15" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_33a38ca4-7295-46e6-ab9b-c395dc384c3c" xlink:to="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_da886728-8391-4b86-a7ef-a6838d75fe15" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_da886728-8391-4b86-a7ef-a6838d75fe15_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_da886728-8391-4b86-a7ef-a6838d75fe15" xlink:to="loc_us-gaap_RelatedPartyDomain_da886728-8391-4b86-a7ef-a6838d75fe15_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_3499fe23-1c36-403f-bd3d-d8116808cb12" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_da886728-8391-4b86-a7ef-a6838d75fe15" xlink:to="loc_us-gaap_RelatedPartyDomain_3499fe23-1c36-403f-bd3d-d8116808cb12" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyMember_76c496dc-c31a-4194-9199-3e63c8dca79b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain_3499fe23-1c36-403f-bd3d-d8116808cb12" xlink:to="loc_us-gaap_RelatedPartyMember_76c496dc-c31a-4194-9199-3e63c8dca79b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionAxis_3c9a3c4e-3f22-4e73-9a2f-cea515d0a268" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_33a38ca4-7295-46e6-ab9b-c395dc384c3c" xlink:to="loc_us-gaap_RelatedPartyTransactionAxis_3c9a3c4e-3f22-4e73-9a2f-cea515d0a268" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionDomain_3c9a3c4e-3f22-4e73-9a2f-cea515d0a268_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RelatedPartyTransactionAxis_3c9a3c4e-3f22-4e73-9a2f-cea515d0a268" xlink:to="loc_us-gaap_RelatedPartyTransactionDomain_3c9a3c4e-3f22-4e73-9a2f-cea515d0a268_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionDomain_5736c0e9-4060-4b4e-b92a-aecdce8c63b0" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RelatedPartyTransactionAxis_3c9a3c4e-3f22-4e73-9a2f-cea515d0a268" xlink:to="loc_us-gaap_RelatedPartyTransactionDomain_5736c0e9-4060-4b4e-b92a-aecdce8c63b0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_EVPurchaseAgreementMember_fe82d3c8-7ffc-4817-b4a2-a0be3e8734da" xlink:href="lcid-20240630.xsd#lcid_EVPurchaseAgreementMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionDomain_5736c0e9-4060-4b4e-b92a-aecdce8c63b0" xlink:to="loc_lcid_EVPurchaseAgreementMember_fe82d3c8-7ffc-4817-b4a2-a0be3e8734da" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CounterpartyNameAxis_e9109c94-28ff-48b4-84a0-ae82998e74b5" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_CounterpartyNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_33a38ca4-7295-46e6-ab9b-c395dc384c3c" xlink:to="loc_srt_CounterpartyNameAxis_e9109c94-28ff-48b4-84a0-ae82998e74b5" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_e9109c94-28ff-48b4-84a0-ae82998e74b5_default" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_CounterpartyNameAxis_e9109c94-28ff-48b4-84a0-ae82998e74b5" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_e9109c94-28ff-48b4-84a0-ae82998e74b5_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_2676ca6d-937b-4fd3-8ec9-1436df972fb0" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_CounterpartyNameAxis_e9109c94-28ff-48b4-84a0-ae82998e74b5" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_2676ca6d-937b-4fd3-8ec9-1436df972fb0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_GovernmentOfSaudiArabiaMember_42df72ac-4abd-43c7-8d7b-222e6e833589" xlink:href="lcid-20240630.xsd#lcid_GovernmentOfSaudiArabiaMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RepurchaseAgreementCounterpartyNameDomain_2676ca6d-937b-4fd3-8ec9-1436df972fb0" xlink:to="loc_lcid_GovernmentOfSaudiArabiaMember_42df72ac-4abd-43c7-8d7b-222e6e833589" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_LongTermSalesCommitmentNumberOfVehiclesCommitted_763ec0be-b6b1-4050-8225-760965042f91" xlink:href="lcid-20240630.xsd#lcid_LongTermSalesCommitmentNumberOfVehiclesCommitted"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_d4d7b761-8917-4db2-a1b5-4d7d3de97914" xlink:to="loc_lcid_LongTermSalesCommitmentNumberOfVehiclesCommitted_763ec0be-b6b1-4050-8225-760965042f91" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_LongTermSalesCommitmentNumberOfVehiclesCommittedMinimum_485ffa73-6a6a-465b-b378-abb2e41af1ca" xlink:href="lcid-20240630.xsd#lcid_LongTermSalesCommitmentNumberOfVehiclesCommittedMinimum"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_d4d7b761-8917-4db2-a1b5-4d7d3de97914" xlink:to="loc_lcid_LongTermSalesCommitmentNumberOfVehiclesCommittedMinimum_485ffa73-6a6a-465b-b378-abb2e41af1ca" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_LongTermSalesCommitmentNumberOfVehiclesCommittedAdditional_c75a2f1f-15a7-4238-89be-26dbc931ad1c" xlink:href="lcid-20240630.xsd#lcid_LongTermSalesCommitmentNumberOfVehiclesCommittedAdditional"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_d4d7b761-8917-4db2-a1b5-4d7d3de97914" xlink:to="loc_lcid_LongTermSalesCommitmentNumberOfVehiclesCommittedAdditional_c75a2f1f-15a7-4238-89be-26dbc931ad1c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_LongTermSalesCommitmentNumberOfYears_ad433929-f1c0-4b05-a07c-11b2bc4d5b1e" xlink:href="lcid-20240630.xsd#lcid_LongTermSalesCommitmentNumberOfYears"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_d4d7b761-8917-4db2-a1b5-4d7d3de97914" xlink:to="loc_lcid_LongTermSalesCommitmentNumberOfYears_ad433929-f1c0-4b05-a07c-11b2bc4d5b1e" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_LongTermSalesCommitmentMinimumVehiclePurchaseReductionPeriod_c5b7a6e4-99c7-43e7-a05c-8422684268f4" xlink:href="lcid-20240630.xsd#lcid_LongTermSalesCommitmentMinimumVehiclePurchaseReductionPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_d4d7b761-8917-4db2-a1b5-4d7d3de97914" xlink:to="loc_lcid_LongTermSalesCommitmentMinimumVehiclePurchaseReductionPeriod_c5b7a6e4-99c7-43e7-a05c-8422684268f4" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Revenues_40021ec7-a115-4293-bfc9-b94b21e83ec2" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_Revenues"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_d4d7b761-8917-4db2-a1b5-4d7d3de97914" xlink:to="loc_us-gaap_Revenues_40021ec7-a115-4293-bfc9-b94b21e83ec2" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent_de06d07e-b17c-4109-86cb-54cd1d5150f0" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccountsReceivableNetCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_d4d7b761-8917-4db2-a1b5-4d7d3de97914" xlink:to="loc_us-gaap_AccountsReceivableNetCurrent_de06d07e-b17c-4109-86cb-54cd1d5150f0" xlink:type="arc" order="6"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://lucidmotors.com/role/RELATEDPARTYTRANSACTIONSImplementationAgreementwithAstonMartinNarrativeDetails" xlink:type="simple" xlink:href="lcid-20240630.xsd#RELATEDPARTYTRANSACTIONSImplementationAgreementwithAstonMartinNarrativeDetails"/>
  <link:definitionLink xlink:role="http://lucidmotors.com/role/RELATEDPARTYTRANSACTIONSImplementationAgreementwithAstonMartinNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionLineItems_47a7161f-51f4-498a-9c7e-75958a0a1f6e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_99d80071-e1f3-4a13-8531-92f02f49155b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_47a7161f-51f4-498a-9c7e-75958a0a1f6e" xlink:to="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_99d80071-e1f3-4a13-8531-92f02f49155b" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CounterpartyNameAxis_b02738c7-f905-4401-938f-c6e281df9825" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_CounterpartyNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_99d80071-e1f3-4a13-8531-92f02f49155b" xlink:to="loc_srt_CounterpartyNameAxis_b02738c7-f905-4401-938f-c6e281df9825" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_b02738c7-f905-4401-938f-c6e281df9825_default" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_CounterpartyNameAxis_b02738c7-f905-4401-938f-c6e281df9825" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_b02738c7-f905-4401-938f-c6e281df9825_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_86ae866b-c2ae-4844-920e-d6c8dfa94b38" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_CounterpartyNameAxis_b02738c7-f905-4401-938f-c6e281df9825" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_86ae866b-c2ae-4844-920e-d6c8dfa94b38" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_AstonMartinLagondaGlobalHoldingsPlcMember_59ae196b-c9bc-4ea0-b5ed-1dfcad7cc9ea" xlink:href="lcid-20240630.xsd#lcid_AstonMartinLagondaGlobalHoldingsPlcMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RepurchaseAgreementCounterpartyNameDomain_86ae866b-c2ae-4844-920e-d6c8dfa94b38" xlink:to="loc_lcid_AstonMartinLagondaGlobalHoldingsPlcMember_59ae196b-c9bc-4ea0-b5ed-1dfcad7cc9ea" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionAxis_227f34cc-6348-4492-9349-b4a537678a12" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_99d80071-e1f3-4a13-8531-92f02f49155b" xlink:to="loc_us-gaap_RelatedPartyTransactionAxis_227f34cc-6348-4492-9349-b4a537678a12" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionDomain_227f34cc-6348-4492-9349-b4a537678a12_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RelatedPartyTransactionAxis_227f34cc-6348-4492-9349-b4a537678a12" xlink:to="loc_us-gaap_RelatedPartyTransactionDomain_227f34cc-6348-4492-9349-b4a537678a12_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionDomain_a3d42be2-c837-4d4d-995b-ffb3a855642d" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RelatedPartyTransactionAxis_227f34cc-6348-4492-9349-b4a537678a12" xlink:to="loc_us-gaap_RelatedPartyTransactionDomain_a3d42be2-c837-4d4d-995b-ffb3a855642d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_StrategicTechnologyArrangementTechnologyAccessFeesMember_2bc2bef9-8289-418d-8045-15cfcfeb6239" xlink:href="lcid-20240630.xsd#lcid_StrategicTechnologyArrangementTechnologyAccessFeesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionDomain_a3d42be2-c837-4d4d-995b-ffb3a855642d" xlink:to="loc_lcid_StrategicTechnologyArrangementTechnologyAccessFeesMember_2bc2bef9-8289-418d-8045-15cfcfeb6239" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_StrategicTechnologyArrangementServiceFeesMember_21fdf67d-ed76-4183-aaff-19c3706316b4" xlink:href="lcid-20240630.xsd#lcid_StrategicTechnologyArrangementServiceFeesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionDomain_a3d42be2-c837-4d4d-995b-ffb3a855642d" xlink:to="loc_lcid_StrategicTechnologyArrangementServiceFeesMember_21fdf67d-ed76-4183-aaff-19c3706316b4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_StrategicTechnologyArrangementMember_dcc50e97-e70a-4883-a37a-71b91c496dcd" xlink:href="lcid-20240630.xsd#lcid_StrategicTechnologyArrangementMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionDomain_a3d42be2-c837-4d4d-995b-ffb3a855642d" xlink:to="loc_lcid_StrategicTechnologyArrangementMember_dcc50e97-e70a-4883-a37a-71b91c496dcd" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_f1450458-be75-414b-a11e-1bd21286f091" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_99d80071-e1f3-4a13-8531-92f02f49155b" xlink:to="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_f1450458-be75-414b-a11e-1bd21286f091" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_f1450458-be75-414b-a11e-1bd21286f091_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_f1450458-be75-414b-a11e-1bd21286f091" xlink:to="loc_us-gaap_RelatedPartyDomain_f1450458-be75-414b-a11e-1bd21286f091_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain_637a763f-9120-4e67-b98b-b9daf3abfdab" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_f1450458-be75-414b-a11e-1bd21286f091" xlink:to="loc_us-gaap_RelatedPartyDomain_637a763f-9120-4e67-b98b-b9daf3abfdab" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyMember_7eed1cb1-279f-48d9-bb84-468d13b0a054" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyDomain_637a763f-9120-4e67-b98b-b9daf3abfdab" xlink:to="loc_us-gaap_RelatedPartyMember_7eed1cb1-279f-48d9-bb84-468d13b0a054" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_3dd017aa-df09-4e4a-af8f-a2f89371ac48" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRelatedPartyTransactionsByRelatedPartyTable_99d80071-e1f3-4a13-8531-92f02f49155b" xlink:to="loc_dei_LegalEntityAxis_3dd017aa-df09-4e4a-af8f-a2f89371ac48" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_3dd017aa-df09-4e4a-af8f-a2f89371ac48_default" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_3dd017aa-df09-4e4a-af8f-a2f89371ac48" xlink:to="loc_dei_EntityDomain_3dd017aa-df09-4e4a-af8f-a2f89371ac48_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_9ff28955-a4c1-4434-80f7-487c65a957b6" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_3dd017aa-df09-4e4a-af8f-a2f89371ac48" xlink:to="loc_dei_EntityDomain_9ff28955-a4c1-4434-80f7-487c65a957b6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_AstonMartinLagondaGlobalHoldingsPlcMember_291df90e-fb44-4712-940e-aa5ea5ccbe0c" xlink:href="lcid-20240630.xsd#lcid_AstonMartinLagondaGlobalHoldingsPlcMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_9ff28955-a4c1-4434-80f7-487c65a957b6" xlink:to="loc_lcid_AstonMartinLagondaGlobalHoldingsPlcMember_291df90e-fb44-4712-940e-aa5ea5ccbe0c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_RelatedPartyTransactionNumberOfSharesReceived_377215f2-6e59-4a1b-815c-bd7337cd8ac9" xlink:href="lcid-20240630.xsd#lcid_RelatedPartyTransactionNumberOfSharesReceived"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_47a7161f-51f4-498a-9c7e-75958a0a1f6e" xlink:to="loc_lcid_RelatedPartyTransactionNumberOfSharesReceived_377215f2-6e59-4a1b-815c-bd7337cd8ac9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_RelatedPartyTransactionInitialInstallment_320a73f9-c303-421d-b31d-0bbaa2003cf1" xlink:href="lcid-20240630.xsd#lcid_RelatedPartyTransactionInitialInstallment"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_47a7161f-51f4-498a-9c7e-75958a0a1f6e" xlink:to="loc_lcid_RelatedPartyTransactionInitialInstallment_320a73f9-c303-421d-b31d-0bbaa2003cf1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquitySecuritiesFvNiCurrentAndNoncurrent_323e46ad-c33a-4225-90a2-d670366420e6" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EquitySecuritiesFvNiCurrentAndNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_47a7161f-51f4-498a-9c7e-75958a0a1f6e" xlink:to="loc_us-gaap_EquitySecuritiesFvNiCurrentAndNoncurrent_323e46ad-c33a-4225-90a2-d670366420e6" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_RelatedPartyTransactionRemainingAmount_ea83a020-9498-42f0-ab93-3dcfbf1f761f" xlink:href="lcid-20240630.xsd#lcid_RelatedPartyTransactionRemainingAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_47a7161f-51f4-498a-9c7e-75958a0a1f6e" xlink:to="loc_lcid_RelatedPartyTransactionRemainingAmount_ea83a020-9498-42f0-ab93-3dcfbf1f761f" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_RelatedPartyTransactionPaymentTerm_5be26860-88d2-42c0-8f1d-82a52f11cc34" xlink:href="lcid-20240630.xsd#lcid_RelatedPartyTransactionPaymentTerm"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_47a7161f-51f4-498a-9c7e-75958a0a1f6e" xlink:to="loc_lcid_RelatedPartyTransactionPaymentTerm_5be26860-88d2-42c0-8f1d-82a52f11cc34" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_RelatedPartyTransactionAmountToReceive_910cfdab-ef48-47c9-8781-6b9ff6668f55" xlink:href="lcid-20240630.xsd#lcid_RelatedPartyTransactionAmountToReceive"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_47a7161f-51f4-498a-9c7e-75958a0a1f6e" xlink:to="loc_lcid_RelatedPartyTransactionAmountToReceive_910cfdab-ef48-47c9-8781-6b9ff6668f55" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_StrategicTechnologyArrangementPaymentTerm_4b5604a8-45cb-42e6-a702-cfacd3fbbf5e" xlink:href="lcid-20240630.xsd#lcid_StrategicTechnologyArrangementPaymentTerm"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_47a7161f-51f4-498a-9c7e-75958a0a1f6e" xlink:to="loc_lcid_StrategicTechnologyArrangementPaymentTerm_4b5604a8-45cb-42e6-a702-cfacd3fbbf5e" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionAmountsOfTransaction_5d652c08-dcbe-4128-8814-2545fae0f9b9" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RelatedPartyTransactionAmountsOfTransaction"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_47a7161f-51f4-498a-9c7e-75958a0a1f6e" xlink:to="loc_us-gaap_RelatedPartyTransactionAmountsOfTransaction_5d652c08-dcbe-4128-8814-2545fae0f9b9" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrent_e346156f-d6f1-48ae-a007-c69f17f18ad0" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherLiabilitiesNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_47a7161f-51f4-498a-9c7e-75958a0a1f6e" xlink:to="loc_us-gaap_OtherLiabilitiesNoncurrent_e346156f-d6f1-48ae-a007-c69f17f18ad0" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_PurchaseCommitmentMinimumAmountCommitted_7c1287d8-d442-445d-a798-ae756f5dac7a" xlink:href="lcid-20240630.xsd#lcid_PurchaseCommitmentMinimumAmountCommitted"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RelatedPartyTransactionLineItems_47a7161f-51f4-498a-9c7e-75958a0a1f6e" xlink:to="loc_lcid_PurchaseCommitmentMinimumAmountCommitted_7c1287d8-d442-445d-a798-ae756f5dac7a" xlink:type="arc" order="9"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://lucidmotors.com/role/SUBSEQUENTEVENTSDetails" xlink:type="simple" xlink:href="lcid-20240630.xsd#SUBSEQUENTEVENTSDetails"/>
  <link:definitionLink xlink:role="http://lucidmotors.com/role/SUBSEQUENTEVENTSDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventLineItems_f02c5bc7-28cb-4be4-ac24-9d8745f2bfa9" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsequentEventLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTable_89a8b010-f5c5-4686-a2ae-843cfa609fec" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsequentEventTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_SubsequentEventLineItems_f02c5bc7-28cb-4be4-ac24-9d8745f2bfa9" xlink:to="loc_us-gaap_SubsequentEventTable_89a8b010-f5c5-4686-a2ae-843cfa609fec" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_a7e5f69b-6ede-4dbb-8ed4-de87d2c9e340" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_SubsequentEventTable_89a8b010-f5c5-4686-a2ae-843cfa609fec" xlink:to="loc_us-gaap_DebtInstrumentAxis_a7e5f69b-6ede-4dbb-8ed4-de87d2c9e340" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_a7e5f69b-6ede-4dbb-8ed4-de87d2c9e340_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_a7e5f69b-6ede-4dbb-8ed4-de87d2c9e340" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_a7e5f69b-6ede-4dbb-8ed4-de87d2c9e340_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_86c3dd9b-8144-4a2a-ac9a-c18473fae709" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_a7e5f69b-6ede-4dbb-8ed4-de87d2c9e340" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_86c3dd9b-8144-4a2a-ac9a-c18473fae709" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_DelayedDrawTermLoanCreditFacilityMember_5149a6b0-68aa-4953-9b4e-d5eef62b018d" xlink:href="lcid-20240630.xsd#lcid_DelayedDrawTermLoanCreditFacilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_86c3dd9b-8144-4a2a-ac9a-c18473fae709" xlink:to="loc_lcid_DelayedDrawTermLoanCreditFacilityMember_5149a6b0-68aa-4953-9b4e-d5eef62b018d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_7b9a0383-3d1f-452f-94f9-89af03a13472" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_SubsequentEventTable_89a8b010-f5c5-4686-a2ae-843cfa609fec" xlink:to="loc_us-gaap_StatementClassOfStockAxis_7b9a0383-3d1f-452f-94f9-89af03a13472" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_7b9a0383-3d1f-452f-94f9-89af03a13472_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_7b9a0383-3d1f-452f-94f9-89af03a13472" xlink:to="loc_us-gaap_ClassOfStockDomain_7b9a0383-3d1f-452f-94f9-89af03a13472_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_e9c60946-5f72-41f6-9f9c-353b244f6dc6" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_7b9a0383-3d1f-452f-94f9-89af03a13472" xlink:to="loc_us-gaap_ClassOfStockDomain_e9c60946-5f72-41f6-9f9c-353b244f6dc6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RedeemableConvertiblePreferredStockMember_8e9fa233-3903-4b52-8ae8-ac6fe437f3f0" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RedeemableConvertiblePreferredStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_e9c60946-5f72-41f6-9f9c-353b244f6dc6" xlink:to="loc_us-gaap_RedeemableConvertiblePreferredStockMember_8e9fa233-3903-4b52-8ae8-ac6fe437f3f0" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsidiarySaleOfStockAxis_58f03d5d-3d0c-4fac-943e-42195896025a" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsidiarySaleOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_SubsequentEventTable_89a8b010-f5c5-4686-a2ae-843cfa609fec" xlink:to="loc_us-gaap_SubsidiarySaleOfStockAxis_58f03d5d-3d0c-4fac-943e-42195896025a" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNameOfTransactionDomain_58f03d5d-3d0c-4fac-943e-42195896025a_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SaleOfStockNameOfTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsidiarySaleOfStockAxis_58f03d5d-3d0c-4fac-943e-42195896025a" xlink:to="loc_us-gaap_SaleOfStockNameOfTransactionDomain_58f03d5d-3d0c-4fac-943e-42195896025a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNameOfTransactionDomain_1d806958-f853-44b1-b9af-91ff5c4f616b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SaleOfStockNameOfTransactionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsidiarySaleOfStockAxis_58f03d5d-3d0c-4fac-943e-42195896025a" xlink:to="loc_us-gaap_SaleOfStockNameOfTransactionDomain_1d806958-f853-44b1-b9af-91ff5c4f616b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_SeriesBSubscriptionAgreementMember_ce51cc64-fc08-42ba-85b9-11c0904ba87b" xlink:href="lcid-20240630.xsd#lcid_SeriesBSubscriptionAgreementMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SaleOfStockNameOfTransactionDomain_1d806958-f853-44b1-b9af-91ff5c4f616b" xlink:to="loc_lcid_SeriesBSubscriptionAgreementMember_ce51cc64-fc08-42ba-85b9-11c0904ba87b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_e1f92735-262f-4db6-a10d-fa467da65034" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsequentEventTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_SubsequentEventTable_89a8b010-f5c5-4686-a2ae-843cfa609fec" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_e1f92735-262f-4db6-a10d-fa467da65034" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_e1f92735-262f-4db6-a10d-fa467da65034_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_e1f92735-262f-4db6-a10d-fa467da65034" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_e1f92735-262f-4db6-a10d-fa467da65034_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_e0e4e908-7de5-4158-8465-ee579194d401" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_e1f92735-262f-4db6-a10d-fa467da65034" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_e0e4e908-7de5-4158-8465-ee579194d401" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventMember_e3be1ef2-0d1a-42f1-9a45-2dce3bc18265" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsequentEventMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventTypeDomain_e0e4e908-7de5-4158-8465-ee579194d401" xlink:to="loc_us-gaap_SubsequentEventMember_e3be1ef2-0d1a-42f1-9a45-2dce3bc18265" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityAxis_4ca08389-2583-4a3f-bb1a-dbd65affb0ea" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CreditFacilityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_SubsequentEventTable_89a8b010-f5c5-4686-a2ae-843cfa609fec" xlink:to="loc_us-gaap_CreditFacilityAxis_4ca08389-2583-4a3f-bb1a-dbd65affb0ea" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_4ca08389-2583-4a3f-bb1a-dbd65affb0ea_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_CreditFacilityAxis_4ca08389-2583-4a3f-bb1a-dbd65affb0ea" xlink:to="loc_us-gaap_CreditFacilityDomain_4ca08389-2583-4a3f-bb1a-dbd65affb0ea_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_868ab8a1-fbd7-4046-873c-fa0612e4114e" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_CreditFacilityAxis_4ca08389-2583-4a3f-bb1a-dbd65affb0ea" xlink:to="loc_us-gaap_CreditFacilityDomain_868ab8a1-fbd7-4046-873c-fa0612e4114e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuredDebtMember_4715aa2e-e7d1-4de7-aa02-f258336279ea" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SecuredDebtMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_868ab8a1-fbd7-4046-873c-fa0612e4114e" xlink:to="loc_us-gaap_SecuredDebtMember_4715aa2e-e7d1-4de7-aa02-f258336279ea" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_b7fd2c3f-fb92-4345-982c-72923a3fbc6b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_SubsequentEventTable_89a8b010-f5c5-4686-a2ae-843cfa609fec" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_b7fd2c3f-fb92-4345-982c-72923a3fbc6b" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_b7fd2c3f-fb92-4345-982c-72923a3fbc6b_default" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_b7fd2c3f-fb92-4345-982c-72923a3fbc6b" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_b7fd2c3f-fb92-4345-982c-72923a3fbc6b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_7b8e59d2-df55-462c-8789-09a7f6f2b6ec" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_b7fd2c3f-fb92-4345-982c-72923a3fbc6b" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_7b8e59d2-df55-462c-8789-09a7f6f2b6ec" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DelayedDrawTermLoanMember_ad2f22ab-5077-4ed2-9314-80805d8d0f96" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DelayedDrawTermLoanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_7b8e59d2-df55-462c-8789-09a7f6f2b6ec" xlink:to="loc_us-gaap_DelayedDrawTermLoanMember_ad2f22ab-5077-4ed2-9314-80805d8d0f96" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CounterpartyNameAxis_b98c4ad8-aa39-4e1e-be74-93069fdb8560" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_CounterpartyNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_SubsequentEventTable_89a8b010-f5c5-4686-a2ae-843cfa609fec" xlink:to="loc_srt_CounterpartyNameAxis_b98c4ad8-aa39-4e1e-be74-93069fdb8560" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_b98c4ad8-aa39-4e1e-be74-93069fdb8560_default" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_CounterpartyNameAxis_b98c4ad8-aa39-4e1e-be74-93069fdb8560" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_b98c4ad8-aa39-4e1e-be74-93069fdb8560_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_ce98d445-82eb-4da6-82d6-33276db7c57d" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_CounterpartyNameAxis_b98c4ad8-aa39-4e1e-be74-93069fdb8560" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_ce98d445-82eb-4da6-82d6-33276db7c57d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_AyarThirdInvestmentCompanyMember_37b06863-c6d8-47a2-8f9d-40931a902086" xlink:href="lcid-20240630.xsd#lcid_AyarThirdInvestmentCompanyMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RepurchaseAgreementCounterpartyNameDomain_ce98d445-82eb-4da6-82d6-33276db7c57d" xlink:to="loc_lcid_AyarThirdInvestmentCompanyMember_37b06863-c6d8-47a2-8f9d-40931a902086" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StatementScenarioAxis_4065f468-5c48-40d2-872e-915b4c84c208" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_StatementScenarioAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_SubsequentEventTable_89a8b010-f5c5-4686-a2ae-843cfa609fec" xlink:to="loc_srt_StatementScenarioAxis_4065f468-5c48-40d2-872e-915b4c84c208" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioUnspecifiedDomain_4065f468-5c48-40d2-872e-915b4c84c208_default" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_ScenarioUnspecifiedDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_StatementScenarioAxis_4065f468-5c48-40d2-872e-915b4c84c208" xlink:to="loc_srt_ScenarioUnspecifiedDomain_4065f468-5c48-40d2-872e-915b4c84c208_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioUnspecifiedDomain_4ba12964-f2b8-497d-879c-124672b24c99" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_ScenarioUnspecifiedDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_StatementScenarioAxis_4065f468-5c48-40d2-872e-915b4c84c208" xlink:to="loc_srt_ScenarioUnspecifiedDomain_4ba12964-f2b8-497d-879c-124672b24c99" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioForecastMember_f81ad6f8-95a1-4703-b086-3c65dd9af92b" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_ScenarioForecastMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ScenarioUnspecifiedDomain_4ba12964-f2b8-497d-879c-124672b24c99" xlink:to="loc_srt_ScenarioForecastMember_f81ad6f8-95a1-4703-b086-3c65dd9af92b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentFaceAmount_3952ee95-c67e-47d2-8cd5-b250e46e55eb" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtInstrumentFaceAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_f02c5bc7-28cb-4be4-ac24-9d8745f2bfa9" xlink:to="loc_us-gaap_DebtInstrumentFaceAmount_3952ee95-c67e-47d2-8cd5-b250e46e55eb" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage_134d00b0-bc22-4e40-b8d9-4f3f8a04b679" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_f02c5bc7-28cb-4be4-ac24-9d8745f2bfa9" xlink:to="loc_us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage_134d00b0-bc22-4e40-b8d9-4f3f8a04b679" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_SaleOfStockNumberOfSharesToBeIssuedInTransaction_1b33ba0b-0d80-4043-a8a4-2ca9b1b20391" xlink:href="lcid-20240630.xsd#lcid_SaleOfStockNumberOfSharesToBeIssuedInTransaction"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_f02c5bc7-28cb-4be4-ac24-9d8745f2bfa9" xlink:to="loc_lcid_SaleOfStockNumberOfSharesToBeIssuedInTransaction_1b33ba0b-0d80-4043-a8a4-2ca9b1b20391" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TemporaryEquityParOrStatedValuePerShare_9baaf18e-e58b-4180-8876-8491361ebdac" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_TemporaryEquityParOrStatedValuePerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_f02c5bc7-28cb-4be4-ac24-9d8745f2bfa9" xlink:to="loc_us-gaap_TemporaryEquityParOrStatedValuePerShare_9baaf18e-e58b-4180-8876-8491361ebdac" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_SaleOfStockConsiderationToReceiveOnTransaction_ae268e9d-2241-47c0-a411-4428c0e32570" xlink:href="lcid-20240630.xsd#lcid_SaleOfStockConsiderationToReceiveOnTransaction"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_f02c5bc7-28cb-4be4-ac24-9d8745f2bfa9" xlink:to="loc_lcid_SaleOfStockConsiderationToReceiveOnTransaction_ae268e9d-2241-47c0-a411-4428c0e32570" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockConsiderationReceivedOnTransaction_2324f901-4555-45e5-9c6b-e57596364c7b" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SaleOfStockConsiderationReceivedOnTransaction"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_f02c5bc7-28cb-4be4-ac24-9d8745f2bfa9" xlink:to="loc_us-gaap_SaleOfStockConsiderationReceivedOnTransaction_2324f901-4555-45e5-9c6b-e57596364c7b" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_b6b7ae90-f0b8-4a46-9260-405a93fc4547" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_f02c5bc7-28cb-4be4-ac24-9d8745f2bfa9" xlink:to="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_b6b7ae90-f0b8-4a46-9260-405a93fc4547" xlink:type="arc" order="6"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://xbrl.sec.gov/ecd/AwardTypeOnly" xlink:type="simple" xlink:href="https://xbrl.sec.gov/ecd/2024/ecd-2024.xsd#AwardTypeOnly"/>
  <link:definitionLink xlink:role="http://xbrl.sec.gov/ecd/AwardTypeOnly" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_UnvestedRestrictedStockAwardMember_84c52086-1cd2-4370-ad13-2c654ceb328a" xlink:href="lcid-20240630.xsd#lcid_UnvestedRestrictedStockAwardMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="loc_lcid_UnvestedRestrictedStockAwardMember_84c52086-1cd2-4370-ad13-2c654ceb328a" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_TimeBasedRestrictedStockUnitsMember_1916e29b-fc85-4f3f-b4d3-6d9429e1436c" xlink:href="lcid-20240630.xsd#lcid_TimeBasedRestrictedStockUnitsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="loc_lcid_TimeBasedRestrictedStockUnitsMember_1916e29b-fc85-4f3f-b4d3-6d9429e1436c" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_lcid_PerformanceBasedRestrictedStockUnitsMember_58ae3bca-fa47-4c67-b493-bd22f12ae1d0" xlink:href="lcid-20240630.xsd#lcid_PerformanceBasedRestrictedStockUnitsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="loc_lcid_PerformanceBasedRestrictedStockUnitsMember_58ae3bca-fa47-4c67-b493-bd22f12ae1d0" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RestrictedStockUnitsRSUMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeStockMember" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EmployeeStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="loc_us-gaap_EmployeeStockMember" xlink:type="arc" order="7"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://fasb.org/us-gaap/role/eedm/ExtensibleEnumerationLists" xlink:type="simple" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-roles-2024.xsd#eedm"/>
  <link:definitionLink xlink:role="http://fasb.org/us-gaap/role/eedm/ExtensibleEnumerationLists" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AssetsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherAssetsCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract" xlink:to="loc_us-gaap_OtherAssetsCurrent" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization" xlink:type="arc" order="2"/>
  </link:definitionLink>
</link:linkbase>
