bluefin tuna

blue·fin tuna

(blo͞o′fĭn′)n. Any of three very large, commercially important tunas of subtropical and temperate waters, northern bluefish tuna (Thunnus thynnus), southern bluefish tuna (T. maccoyii), and Pacific bluefish tuna (T. orientalis).

blue′fin tu′na

(ˈbluˌfɪn)
n. a large tuna, Thunnus thynnus, common in temperate seas. [1920–25]

Thesaurus

Noun	1.	bluefin tuna - flesh of very large tunabluefinhorse mackerel, Thunnus thynnus, bluefin, bluefin tuna - largest tuna; to 1500 pounds; of mostly temperate seas: feed in polar regions but breed in tropicstuna fish, tunny, tuna - important warm-water fatty fish of the genus Thunnus of the family Scombridae; usually served as steaks
	2.	bluefin tuna - largest tuna; to 1500 pounds; of mostly temperate seas: feed in polar regions but breed in tropicshorse mackerel, Thunnus thynnus, bluefingenus Thunnus, Thunnus - tunas: warm-blooded fishestunny, tuna - any very large marine food and game fish of the genus Thunnus; related to mackerel; chiefly of warm watersbluefin, bluefin tuna - flesh of very large tuna