<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31301526</termId><termName>hygroscopicity</termName><termType>PT</termType><termNote><![CDATA[ The tendency of a substance to absorb or attract water from the air. ]]></termNote><termCreatedDate>2026-03-30 20:21:01</termCreatedDate><relation><relationType>UF</relationType><termId>31301527</termId><termName>hygroscopic</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31298173</termId><termName>physicochemical attributes and properties</termName><termType>PT</termType></relation></term>  </Zthes>