1. any of various fierce, mostly tropical marine fishes of the genus Sphyraena that resemble pike, have a projecting lower jaw with fanglike teeth, and include some edible species.

1. any large marine fish of the genus Sphyraena that have elongated bodies, a projecting lower jaw, displaying prominent fang-shaped teeth, and are aggressive predators.
2. A unethically predatory person.

1. any of several voracious pikelike marine fishes allied to the gray mullets, constituting the genus Sphyræna and family Sphyrænidæ. the great barracuda (Sphyræna barracuda) of the west indies, florida, etc., is often six feet or more long, and as dangerous as a shark. in cuba its flesh is reputed to be poisonous. Sphyræna Argentea of the pacific coast and Sphyræna sphyræna of europe are smaller species, and are used as food.
2. A large edible fresh-water fish of australia and new Zealand (Thyrsites atun).

1. A large voracious fish, Sphyræna picuda, of the west indian and neighboring seas. it belongs to the perch family, and is from 6 to 10 feet in length.
2. Thyrsites atun, a gempyloid fish of australia and new Zealand: not the barracuda of american waters.

1. any voracious marine fish of the genus Sphyraena having an elongated cylindrical body and large mouth with projecting lower jaw and long strong teeth