/ Thesaurus / P Synonyms of picric acid Find synonyms for: Noun1. picric acid, acidusage: a yellow toxic highly explosive strong acid; used in high explosives and as a dye and in chemical reactionsWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: reticent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language