/ Thesaurus / O Synonyms of opsanus tau Find synonyms for: Noun1. toadfish, Opsanus tau, spiny-finned fish, acanthopterygianusage: bottom-dwelling fish having scaleless slimy skin and a broad thick head with a wide mouthWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: diaphanous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language