any of various large, long-tailed parrots, chiefly of the genus Ara, of tropical and subtropical America, noted for their brilliant plumage and harsh voice.
ma·caw (mə-kô') n. Any of various parrots of the genera Ara and Anodorhynchus of Central and South America, including the largest parrots and characterized by long saber-shaped tails, curved powerful bills, and usually brilliant plumage.
[Portuguese macaú, from macaúba, kind of palm tree, from Tupi macahuba, palm tree : maca, palm + ybá, tree.]
"species of large, long-tailed birds," 1668, from Port. macau, from a word in a Brazilian language, perhaps Tupi macavuana, which may be the name of a type of palm tree the fruit of which the birds eat.