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blackfish

[ blak-fish ]
/ ˈblækˌfɪʃ /
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noun, plural (especially collectively) black·fish, (especially referring to two or more kinds or species) black·fish·es.
any of various dark-colored fishes, as the tautog, Tautoga onitis, or the sea bass, Centropristes striatus.
a small, freshwater food fish, Dallia pectoralis, found in Alaska and Siberia, noted for its ability to survive frozen in ice.
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Origin of blackfish

An Americanism dating back to 1680–90; black + fish
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

How to use blackfish in a sentence

British Dictionary definitions for blackfish

blackfish
/ (ˈblækˌfɪʃ) /

noun plural -fish or -fishes
a minnow-like Alaskan freshwater fish, Dallia pectoralis, related to the pikes and thought to be able to survive prolonged freezing
a female salmon that has recently spawnedCompare redfish (def. 1)
any of various other dark fishes, esp the luderick, a common edible Australian estuary fish
another name for pilot whale
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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