Definition of red rockfish
1 : a large rockfish (Sebastodes ruberrimus) of the Pacific coast of North America that is crimson above fading to yellowish pink on the sides and is a highly esteemed food fish —called also red snapper
2 : a red color phase of a large common grouper (Mycteroperca venenosa or Trisotropis venenosa) of the tropical western Atlantic and the West Indies —called also rock grouper
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