any of the larger cetacean mammals having a streamlined body and breathing through a blowhole on the head

toothed whales: dolphins; porpoises; sperm whales; beaked whales

large whale with a large cavity in the head containing spermaceti and oil; also a source of ambergris

small sperm whale of warm waters of both coasts of North America

very small (to 8 feet) sperm whale of central coasts of Atlantic and Pacific

any of several whales inhabiting all oceans and having beaklike jaws with vestigial teeth in the upper jaw

any of various small toothed whales with a beaklike snout; larger than porpoises

toothed whales: dolphins; porpoises; sperm whales; beaked whales