/blooh"fish'/ , n. , pl. ( esp. collectively ) bluefish , ( esp. referring to two or more kinds or species ) bluefishes .
1. a predaceous, marine, bluish or greenish food fish, Pomatomus saltatrix, inhabiting Atlantic coastal waters of North and South America.
2. any of various fishes, usually of a bluish color.
[ 1615-25, Amer.; BLUE + FISH ]