[kok-uh-too, kok-uh-too] 
| 1. | any of numerous large, noisy, crested parrots of the genera Cacatua, Callocephalon, Calyptorhynchus, etc., of the Australasian region, having chiefly white plumage tinged with yellow, pink, or red: popular as a pet. |
| 2. | Australian.
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| cock·a·too (kŏk'ə-tōō') n. pl. cock·a·toos Any of various large parrots, especially of the genus Kakatoe of Australia and adjacent areas, characterized by a long erectile crest. [Dutch kaketoe, from Malay kakatua.] |