/ Thesaurus / H Synonyms of hydroxy acid Find synonyms for: Noun1. hydroxy acid, acidusage: any acid that has hydroxyl groups in addition to the hydroxyl group in the acid itselfWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: grimace Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language