<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31305976</termId><termName>initiator</termName><termType>PT</termType><termNote><![CDATA[ Substance or molecule, other than the reactant, that starts a chain reaction (as in polymerization) and is usually consumed in the reaction. ]]></termNote><termCreatedDate>2026-03-30 20:22:19</termCreatedDate><relation><relationType>BT</relationType><termId>31298939</termId><termName>materials by function</termName><termType>PT</termType></relation></term>  </Zthes>