Also found in: Thesaurus, Medical, Legal, Acronyms, Encyclopedia, Wikipedia.
Any of various parrots of several genera found in Mexico and South and Central America, including the largest parrots and characterized by a long tail, curved powerful bill, and usually brilliant plumage.
[Portuguese macaú, from macaúba, kind of palm tree, from Tupí macahuba, palm tree : maca, palm + ybá, tree.]
(Animals) any large tropical American parrot of the genera Ara and Anodorhynchus, having a long tail and brilliant plumage
[C17: from Portuguese macau, of unknown origin]
any of various extremely large, long-tailed parrots of the genera Ara and Anodorhynchus, of the New World tropics, noted for their brilliant plumage and harsh voice.
[1660–70; < Portuguese macao, macau < Tupi mak'o]