noun Zoology.
any whale of the suborder Odontoceti, as dolphins, killer whales, and sperm whales, characterized by an asymmetrical skull, a single blowhole, and rows of teeth, feeding primarily on fish, squid, and crustaceans.
Compare mysticete.

1880–85; < Neo-Latin Odontoceti, equivalent to odonto- odonto- + ceti, plural of cetus whale, Latin cētus < Greek kêtos

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Genetic evidence for the ancestral loss of short-wavelength-sensitive cone pigments in mysticete and odontocete cetaceans.
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