- Arctic white whale - 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.
- The bowhead, Arctic, or Greenland whale (Balaena
mysticetus), from whose mouth the best whalebone is obtained. - Any other whale that produces valuable whalebone, as the
Atlantic, or Biscay, right whale (Balaena cisarctica), and the Pacific
right whale (B. Sieboldii); a bone whale.
- A genus of naked pteropods. One species (Clione
papilonacea), abundant in the Arctic Ocean, constitutes a part of the
food of the Greenland whale. It is sometimes incorrectly called Clio.