/ Thesaurus / I Synonyms of itaconic acid Find synonyms for: Noun1. itaconic acid, acidusage: a crystalline carboxylic acid; occurs in some fermentations of sugarsWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: inane Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language