Cock`a*too" (kok`a*tOO"), n. [Malayan kakatUa.] (Zoöl.)
A bird of the Parrot family, of the subfamily Cacatuinæ, having a short, strong, and much curved beak, and the head ornamented with a crest, which can be raised or depressed at will. There are several genera and many species; as the broad-crested (Plictolophus, or Cacatua, cristatus), the sulphur-crested (P. galeritus), etc. The palm or great black cockatoo of Australia is Microglossus aterrimus.
© Webster 1913