Cetaceous

ce·ta·cean  (s-tshn)

n.

Any of various aquatic, chiefly marine mammals of the order Cetacea, including the whales, dolphins, and porpoises, characterized by a nearly hairless body, anterior limbs modified into broad flippers, vestigial posterior limbs, and a flat notched tail.

adj. also ce·ta·ceous (s-tshs)

Of, relating to, or belonging to the order Cetacea.

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[From New Latin Ctcea, order name, from Latin ctus, whale; see Cetus.]

Thesaurus

Adj.

1.

cetaceous - of or relating to whales and dolphins etc cetacean