<?xml version="1.0" encoding="US-ASCII"?>
<!-- Generated by Broadridge Transform (tm) - http://www.broadridge.com -->
<!-- Created: Wed Jun 10 20:05:31 UTC 2026 -->
<linkbase xmlns="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" xmlns:xbrldt="http://xbrl.org/2005/xbrldt">
  <roleRef xlink:type="simple" xlink:href="https://xbrl.sec.gov/vip/2026/vip-2026.xsd#InvestmentOptionOnly" roleURI="http://xbrl.sec.gov/vip/role/InvestmentOptionOnly"/>
  <arcroleRef xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-default" arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-default"/>
  <arcroleRef xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-domain" arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-domain"/>
  <arcroleRef xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension" arcroleURI="http://xbrl.org/int/dim/arcrole/hypercube-dimension"/>
  <arcroleRef xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member" arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member"/>
  <arcroleRef xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#all" arcroleURI="http://xbrl.org/int/dim/arcrole/all"/>
  <definitionLink xlink:role="http://xbrl.sec.gov/vip/role/InvestmentOptionOnly" xlink:type="extended">
    <loc xlink:type="locator" xlink:label="vip_AllInvestmentOptionsMember" xlink:href="https://xbrl.sec.gov/vip/2026/vip-2026.xsd#vip_AllInvestmentOptionsMember"/>
    <loc xlink:type="locator" xlink:label="plic_DCAMarketValueAdjustmentOption12MonthMember" xlink:href="plic-20251231.xsd#plic_DCAMarketValueAdjustmentOption12MonthMember"/>
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="vip_AllInvestmentOptionsMember" xlink:to="plic_DCAMarketValueAdjustmentOption12MonthMember" order="1" xbrldt:closed="true"/>
    <loc xlink:type="locator" xlink:label="plic_DCAMarketValueAdjustmentOption6MonthMember" xlink:href="plic-20251231.xsd#plic_DCAMarketValueAdjustmentOption6MonthMember"/>
<!-- [WMV7][lqpHQgZexSrAPAlR5ufqXrZtzvCLbmOzA1JzJoZP/b1VnxZ/CIDbil6Y0FbkaZjrPB/I4YHpVAWTbyu1v3HOBsO5sivVBXtKXdjs0axx7iX16NUl8Bn9kudOc0rC6StWW7RzF/dMAM0/ojfdIHDl/NPiMhFg6d6KjYVED3uJOJIxfRgXNSGE2o021TWHDH++cDzsRkcg6pdZ/JoHkoldM7cKa1D9tnwwJr1UhcD2Wz9v2a3QwAIh4f6VbvtHwn5Ivq4szqRYEIsRRvMeZY5O0E4QuvAKQQ9VdrFWVwVn65hqt6U+Aj1iunMh5yFoy1VelyjpmOvCPtXlXNEdiyQ8Bd/UNB3lX6jiXwV5X5zmmaIsiGMhDAOHz7oG6moNxkbtVOi/eQ==] CSR-->
    <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="vip_AllInvestmentOptionsMember" xlink:to="plic_DCAMarketValueAdjustmentOption6MonthMember" order="3" xbrldt:closed="true"/>
  </definitionLink>
</linkbase>
