/ Thesaurus / F Synonyms of fossa cat Find synonyms for: Noun1. fossa, fossa cat, Cryptoprocta ferox, viverrine, viverrine mammalusage: largest carnivore of Madagascar; intermediate in some respects between cats and civetsWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: penurious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language