Webster's Revised Unabridged Dictionary · 1913

Odontocete

Odontocete (o*don`to*sē"te) , noun, plural

[New Latin, from Greek 'odoy`s, 'odo`ntos, a tooth + kh^tos a whale.]

(Zoology) A subdivision of Cetacea, including the sperm whale, dolphins, etc.; the toothed whales.