Tuna

Tu´na

n.	1.	(Bot.) The Opuntia Tuna. See Prickly pear, under Prickly.
	1.	(Zool.) Any one of several species of large oceanic fishes belonging to the mackerel family Scombridae, especially the bluefin tuna (Thunnus thynnus, formerly Orcynus thynnus or Albacora thynnus), called also the common tunny or great tunny, a native of the Mediterranean Sea and of temperate parts of the Atlantic Ocean. It sometimes weighs a thousand pounds or more, and is caught commercially in large quantity for use as food; - also called, especially in Britain, tunny. It is also one of the favorite fishes used by the Japanese in preparing sushi. On the American coast, especially in New England, it is sometimes called the horse mackerel. Another well-known species is the yellowfin tuna (Thunnus albacares) of warm seas. the See Illust. of Horse mackerel, under Horse.
	2.	The bonito, 2.
	3.	the meat of the tuna, used as food; - also called tuna fish.

Noun	1.	tuna - tropical American flat-jointed prickly pear; Jamaica Synonyms: Opuntia tuna
	2.	tuna - important warm-water fatty fish of the genus Thunnus of the family Scombridae; usually served as steaks Synonyms: tuna fish, tunny
	3.	tuna - any very large marine food and game fish of the genus Thunnus; related to mackerel; chiefly of warm waters Synonyms: tunny
	4.	tuna - New Zealand eel Synonyms: Anguilla sucklandii