redfish \ˈ ̷ ̷ˌ ̷ ̷\noun (pluralredfishorredfishes) : any of various more or less reddish fishes: as a. (1): blueback salmon (2)Britain: the male salmon in spawning condition b.: rosefish c.: a sheepshead (Pimelometopon pulcher) d.: channel bass e.: a red phase of the coney (Cephalopholis fulvus)