bluefin definition

  • noun:
    • bluefin tuna, a number of kinds of tuna characterised by their blue fins.
    • A species of whitefish (Coregonus nigripinnis) present Lake Michigan.
    • a nearby name in the us for the lake-herring or whitefish of Lake Michigan, Coregonus nigripinnis. See cisco.
    • biggest tuna; to 1500 weight; of mainly temperate seas: feed in polar regions but breed in tropics
    • skin of large tuna

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