Calopsitta Novae-Hollandiae

cockatiel cock"a*tiel, Cockateel Cock"a*teel, n. (Zo["o]l.) A small gray and white Australian parrot ({Leptolophus hollandicus}, formerly {Calopsitta Nov[ae]-Hollandi[ae]}) with a prominent crest; the male has bright yellow cheeks and crest, but the female has only a pale yellow in the face; -- it is so called from its note.

Syn: cockateel, cockatoo parrot, {Nymphicus hollandicus}. [1913 Webster + WordNet 1.5]