/ Thesaurus / C Synonyms of citric acid Find synonyms for: Noun1. citric acid, acidusage: a weak water-soluble acid found in many fruits (especially citrus fruits); used as a flavoring agentWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: jaundice Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language