/ Thesaurus / T Synonyms of tribasic acid Find synonyms for: Noun1. tribasic acid, acidusage: an acid containing three replaceable hydrogen atoms per moleculeWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: candor Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language