A name applied to several large fishes of the Mackerel family (Scombridae), esp. Thunnus alalunga (formerly Orcynus alalonga); it is a type of tuna or tunny. The name has been also applied to a larger related species, Thunnus thynnus (formerly Orcynus thynnus), common in the Mediterranean and Atlantic, which is called in New England the horse mackerel.

relatively small tuna with choice white flesh; major source of canned tuna

large pelagic tuna the source of most canned tuna; reaches 93 pounds and has long pectoral fins; found worldwide in tropical and temperate waters

A variety of tuna fish, with white meat and a high fat content.

The albacore (Thunnus alalunga) is a type of tuna in the family Scombridae. This species may also be called albacore fish, albacore tuna, bastard albacore, longfin, albies, pigfish, Pacific albacore, German bonito (but see bonito), longfin tuna, longfin tunny, or even just tuna. It is the only tuna species which may be marketed as "white meat tuna" in the United States.