/oh don"teuh seet'/ , n. Zool.
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. Cf. mysticete .
[ 1880-85; Odontoceti, equiv. to odonto- ODONTO- + ceti, pl. of cetus whale, L cetus kêtos ]