Blackfish (&unr_;), n. 1. (Zoöl.) A small kind of whale, of the genus Globicephalus, of several species. The most common is Globicephalus melas. Also sometimes applied to other whales of larger size.
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2. (Zoöl.) The tautog of New England (Tautoga).
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3. (Zoöl.) The black sea bass (Centropristis atrarius) of the Atlantic coast. It is excellent food fish; -- locally called also black Harry.
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4. (Zoöl.) A fish of southern Europe (Centrolophus pompilus) of the Mackerel family.
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5. (Zoöl.) The female salmon in the spawning season.
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&hand_; The name is locally applied to other fishes.
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