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blackfish

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noun black·fish \-ˌfish\

Definition of blackfish

  1. 1 :  any of numerous dark-colored fishes: as a :  tautog b :  a small bony fish (Dallia pectoralis of the family Umbridae) of Alaska and Siberia that is used for food and is noted for its resistance to cold

  2. 2 :  any of several small toothed whales; especially :  pilot whale




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