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One of the Cetacea.

Furnished with a process or a mouth like a beak; rostrate. Beaked whale (Zoöl.), a cetacean of the genus Hyperoodon; the bottlehead whale.

A cetacean allied to the dolphins.

A nostril or spiracle in the top of the head of a whale or other cetacean.

A cetacean of the Dolphin family, of several species, as Delphinus Tursio and Lagenorhyncus leucopleurus, of Europe.

A cetacean allied to the grampus; -- called also bottle-nosed whale.

A cetacean of the genus Delphinus and allied genera (esp. D. delphis); the true dolphin.

A toothed delphinoid cetacean, of the genus Grampus, esp. G. griseus of Europe and America, which is valued for its oil. It grows to be fifteen to twenty feet long; its color is gray with white streaks. Called also cowfish. The California grampus is G. Stearnsii.

Having finlike appendages or flukes instead of legs, as a cetacean.

An arctic cetacean (Monodon monocerous), about twenty feet long. The male usually has one long, twisted, pointed canine tooth, or tusk projecting forward from the upper jaw like a horn, whence it is called also sea unicorn, unicorn fish, and unicorn whale. Sometimes two horns are developed, side by side.…

Any small cetacean of the genus Phocæna, especially P. communis, or P. phocæna, of Europe, and the closely allied American species (P. Americana). The color is dusky or blackish above, paler beneath. They are closely allied to the dolphins, but have a shorter snout. Called also harbor porpoise, herring hag, puffing pig…

Any large marine mammal, as a seal, walrus, or cetacean.

rican coast. Called also snub-nosed cachalot. -- Sperm-whale porpoise (Zoöl.), a toothed cetacean (Hyperoödon bidens), found on both sides of the Atlantic and valued for its oil. The adult becomes about twenty-five feet long, and its head is very large and thick. Called also bottle-nosed whale.

Having the testicles naturally concealed, as in the case of the cetaceans.

staceans belonging to the genus Cyamus, especially C. ceti. They are parasitic on various cetaceans. -- Whale's bone, ivory. [Obs.] -- Whale shark. (Zoöl.) (a) The basking, or liver, shark. (b) A very large harmless shark (Rhinodon typicus) native of the Indian Ocean. It sometimes becomes sixty feet long. -- Whale sh…

Of, pertaining to, or resembling, a cetacean of the genus Xiphius or family Xiphiidæ.

A genus of cetaceans having a long, pointed, bony beak, usually two tusklike teeth in the lower jaw, but no teeth in the upper jaw.