<?xml version="1.0" encoding="utf-8"?><mads xmlns="http://www.loc.gov/mads/" xmlns:mods="http://www.loc.gov/mods/v3" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.loc.gov/mads/
mads.xsd"><authority><topic authority="http://AATesaurus.cultura.gencat.cat/aat/getty_en">ice</topic></authority><related type="broader"><topic>materials by physical state</topic></related><variant type="other"><topic>ices</topic></variant> <note xml:lang="en"><![CDATA[ Any of various frozen or solidified forms of substances (including water) that are liquid, gaseous, or volatile under normal conditions on earth; the term is used particularly in astronomy for such materials, which are present in the nuclei of comets, in planets, and in other celestial objects.Often used with a modifying word specifying the substance, such as ammonia ice, methane ice, water ice, etc.  ]]></note></mads>