cockatiel \cock"a*tiel\, Cockateel \Cock"a*teel\, n. (Zool.)
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]