rabbitfishEnglishOxford New American Dictionaryrabbitfish /ˈrabitˌfiSH, ˈræbɪtˌfɪʃ / ▸ noun (plural same or rabbitfishes) a blunt-nosed chimaera with rodent-like front teeth and a long thin tail, found in the northeastern Atlantic and around South Africa. Also called ratfish, rat-tail. Chimaera monstrosa, family Chimaeridae.