Pronunciation: (kou'fish"),[key] —n., —pl.(esp. collectively)-fish,(esp. referring to two or more kinds or species)-fish•es. 1. any of several marine fishes having hornlike projections over the eyes, esp. a trunkfish, Lactophrys guadricornus, found in the warm waters of the Atlantic Ocean.
2. a sirenian, as the manatee.
3. any of various small cetaceans, as a porpoise or dolphin or the grampus, Grampus griseus.