Pronunciation: (sun'fish"),[key] —n., —pl.(esp. collectively)-fish,(esp. referring to two or more kinds or species)-fish•es. 1. the ocean sunfish, Mola mola. 2. any of various other fishes of the family Molidae.
3. any of several small, brightly colored, spiny-rayed freshwater fishes of the genus Lepomis, of North America, having a deep, compressed body.