(n.) A bird of the Parrot family, of the subfamily Cacatuinae, 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, / Cacatua, cristatus), the sulphur-crested (P. galeritus), etc. The palm or great black cockatoo of Australia is Microglossus aterrimus.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). cockatoo. Retrieved September 28, 2026, from http://smartdefine.org/cockatoo/definitions/1988585 |
| Chicago | Webster's. 2011. "cockatoo" http://smartdefine.org/cockatoo/definitions/1988585 (accessed September 28, 2026). |
| Harvard | Webster's 2011, cockatoo, Smart Define, viewed 28 September, 2026, <http://smartdefine.org/cockatoo/definitions/1988585>. |
| MLA | Webster's. "cockatoo" 27 May 2011. Web. 28 September 2026. <http://smartdefine.org/cockatoo/definitions/1988585> |