any of numerous related or similar marine food fishes.
Origin
1755-65, Americanism
British Dictionary definitions for sea bass
sea bass
/bæs/
noun
1.
any of various American coastal percoid fishes of the genus Centropristes and related genera, such as C. striatus (black sea bass), having an elongated body with a long spiny dorsal fin almost divided into two: family Serranidae