cockatoo
Concise Oxford English Dictionary © 2008 Oxford University Press:
cockatoo /ˌkɒkəˈtuː/
▶noun a parrot with an erectile crest, found in Australia, eastern Indonesia, and neighbouring islands. [Family Cacatuidae : numerous species.]
– origin C17: from Du. kaketoe, from Malay kakatua.
'cockatoo' also found in these Oxford entries:

