Definition of bluefin in English:

bluefin

Syllabification: blue·fin
Pronunciation: /ˈblo͞oˌfin
 
/
(also bluefin tuna)

noun

  • The most common large tuna, which occurs worldwide in warm seas. It is probably the largest bony fish, and is very important as a food and game fish.
    • Thunnus thynnus, family Scombridae
    More example sentences
    • The rapid advances in this tag technique have led to a wealth of new information on the physiology, behavior and distribution of northern and southern bluefin, bigeye, yellowfin and skipjack tunas.
    • Big fish - like swordfish and bluefin tuna - are attracted to fronts where cold and warm waters meet.
    • I want there to be hammerhead sharks and bluefin tuna around when my five-year-old son grows up.

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a powerful whirlpool in the sea