<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31344867</termId><termName>fluoride</termName><termType>PT</termType><termNote><![CDATA[ Any compound joining fluorine to another element or to an organic group. ]]></termNote><termCreatedDate>2026-03-30 20:33:01</termCreatedDate><relation><relationType>UF</relationType><termId>31344868</termId><termName>fluorides</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31320546</termId><termName>fluorine and fluorine compounds</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31320349</termId><termName>hydrogen fluoride</termName><termType>PT</termType></relation></term>  </Zthes>