(n)large pelagic tuna the source of most canned tuna; reaches 93 pounds and has long pectoral fins; found worldwide in tropical and temperate waters, Syn.Thunnus alalunga, long-fin tunny
The Collaborative International Dictionary of English (GCIDE) v.0.53Collaborative International Dictionary (GCIDE)
n. (Zool.) 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. [ formerly spelled albicore. ] [ 1913 Webster +PJC ]