/ Thesaurus / X Synonyms of xenotime Find synonyms for: Noun1. xenotime, mineralusage: a brown-to-yellow mineral that is a phosphate of yttrium in crystalline formWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: coincidence Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language