<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31320529</termId><termName>iodine</termName><termType>PT</termType><termNote><![CDATA[ A nonmetallic element of the halogen family with atomic number 53 and symbol I. It is a dark crystalline solid used as an additive to salt to prevent iodine insufficiency and is used in dyes, photographic film, x-ray contrast media, and other applications.  ]]></termNote><termCreatedDate>2026-03-30 20:26:23</termCreatedDate><relation><relationType>UF</relationType><termId>31320530</termId><termName>I</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31306143</termId><termName>inorganic material</termName><termType>PT</termType></relation><relation><relationType>BT</relationType><termId>31319740</termId><termName>elements</termName><termType>PT</termType></relation></term>  </Zthes>