phase change pha·sec·hange uncommon noun 1. a change from one state (solid or liquid or gas) to another without a change in chemical composition Synonymsphase changephase transitionstate changephysical change Related words Broader terms natural process Narrower terms freezeliquefactionthawvaporization WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
