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bluefin Meaning, Definition & Usage

  1. noun flesh of very large tuna
    bluefin tuna.
  2. noun largest tuna; to 1500 pounds; of mostly temperate seas: feed in polar regions but breed in tropics
    bluefin tuna; Thunnus thynnus; horse mackerel.

Blue"fin` noun
  1. (Zoöl.) A species of whitefish (Coregonus nigripinnis) found in Lake Michigan.

Webster 1913