<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31311687</termId><termName>opalescence</termName><termType>PT</termType><termNote><![CDATA[ Quality or state of exhibiting a milky iridescence like that of an opal. ]]></termNote><termCreatedDate>2026-03-30 20:23:58</termCreatedDate><relation><relationType>UF</relationType><termId>31311688</termId><termName>opalescent</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31301310</termId><termName>iridescence</termName><termType>PT</termType></relation></term>  </Zthes>