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Definition of Killer whale
1. Noun. Predatory black-and-white toothed whale with large dorsal fin; common in cold seas.
Exact synonyms: Grampus, Killer, Orca, Orcinus Orca, Sea Wolf
Generic synonyms: Dolphin
Group relationships: Genus Orcinus, Orcinus
Generic synonyms: Dolphin
Group relationships: Genus Orcinus, Orcinus