[n] large aquatic carnivorous mammal with fin-like forelimbs no hind limbs, including: whales; dolphins; porpoises; narwhals [adj] of or relating to whales and dolphins etc
blower, cetacean mammal, cetaceous
alevin, baleen whale, beluga, benthon, benthos, blackfish, blue whale, cachalot, dolphin, finback, fingerling, fish, fry, game fish, grilse, humpback, killer, killer whale, kipper, Loch Ness monster, man-eater, man-eating shark, marine animal, minnow, min