killer-whale

killer whale

noun
any of several predatory dolphins, especially the black-and-white Orcinus orca, found in all seas.

Origin:
1880–85

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World English Dictionary
killer whale
 
n
killer, grampus, Also called: orc a predatory black-and-white toothed whale, Orcinus orca, with a large erect dorsal fin, most common in cold seas: family Delphinidae

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