/ Thesaurus / F Synonyms of fulminic acid Find synonyms for: Noun1. fulminic acid, acidusage: (CNOH) an unstable acid occurring mainly in the form of explosive salts and esters that is isomeric with cyanic acidWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language