noun an american fresh-water darter; the log perch.
2. rockfish ·noun the striped bass. ·see bass.
3. rockfish ·noun any one of several species of florida and bermuda groupers of the genus epinephelus.
4. rockfish ·noun any one of several california scorpaenoid food fishes of the genus sebastichthys, as the red rockfish (s. ruber). they are among the most important of california market fishes. called also rock cod, and garrupa.