from The American Heritage® Dictionary of the English Language, 4th Edition
- 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. Of, relating to, or belonging to the order Cetacea.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Pertaining to the zoologic order Cetacea, or associated with species falling under that taxonomic hierarchy.
- adj. More generally, relating to large aquatic mammals, either directly or by analogy.
- n. An animal belonging to the order Cetacea, including dolphins, porpoises, and whales.
from the GNU version of the Collaborative International Dictionary of English
- n. One of the Cetacea.
from The Century Dictionary and Cyclopedia
- Pertaining to the whale, or to the Cetacea.
- n. An animal of the order Cete; a whale, or one of the whale kind.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. of or relating to whales and dolphins etc
- n. large aquatic carnivorous mammal with fin-like forelimbs no hind limbs, including: whales; dolphins; porpoises; narwhals
From New Latin Cētācea, order name, from Latin cētus, whale; see Cetus.(American Heritage® Dictionary of the English Language, Fourth Edition)
New Latin cetacea, from Latin cetus ("whale"). (Wiktionary)