rock bass

[bas] /bæs/
noun
1.
a game fish, Ambloplites rupestris, of the sunfish family, inhabiting freshwater streams of the eastern U.S.
Origin
1805-15, Americanism
British Dictionary definitions for rock bass

rock bass

/bæs/
noun
1.
a North American freshwater percoid fish, Ambloplites rupestris: an important food fish; family Centrarchidae (sunfishes, etc)
2.
any similar or related fish