from The American Heritage® Dictionary of the English Language, 4th Edition
- 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.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Any of various parrots of the genera Ara, Anodorhynchus, Cyanopsitta, Orthopsittaca, Primolius and Diopsittaca of Central and South America, including the largest parrots and characterized by long sabre-shaped tails, curved powerful bills, and usually brilliant plumage.
from the GNU version of the Collaborative International Dictionary of English
- n. Any parrot of the genus Ara, Sittace, or Macrocercus. About eighteen species are known, all of them found in Central and South America. They are large and have a very long tail, a strong hooked bill, and a naked space around the eyes. The voice is harsh, and the colors are brilliant and strongly contrasted; they are among the largest and showiest of parrots. Different species names have been given to the same macaw, as for example the Hyacinthine macaw, which has been variously classified as Anodorhyncus hyacynthinus, Anodorhyncus maximiliani, and Macrocercus hyacynthinus.
from The Century Dictionary and Cyclopedia
- n. A large American parrot of the family Psittacidæ and subfamily Arinæ, having a very long graduated tail and the face partly bare of feathers.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. long-tailed brilliantly colored parrot of Central America and South America; among the largest and showiest of parrots
Portuguese macaú, from macaúba, kind of palm tree, from Tupi macahuba, palm tree : maca, palm + ybá, tree.(American Heritage® Dictionary of the English Language, Fourth Edition)
Portuguese macao, from Tupian (Wiktionary)