<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31319725</termId><termName>supercritical fluid</termName><termType>PT</termType><termNote><![CDATA[ Any substance held at or above its critical temperature and pressure in a fluid state. The properties of a supercritical fluid are intermediate between those of the substance in its gaseous and liquid states. A supercritical fluid can both penetrate material like a gas and dissolve material like a liquid. ]]></termNote><termCreatedDate>2026-03-30 20:26:09</termCreatedDate><relation><relationType>UF</relationType><termId>31319726</termId><termName>SCF</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31319727</termId><termName>fluid, supercritical</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31319728</termId><termName>supercritical fluids</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31305816</termId><termName>materials by physical state</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31343227</termId><termName>supercritical carbon dioxide</termName><termType>PT</termType></relation></term>  </Zthes>