from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Any of various small insect-eating New World songbirds of the genus Vireo, having grayish or greenish plumage.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Any of several small insectivorous passerine birds, of the genus Vireo, that have grey-green plumage
from the GNU version of the Collaborative International Dictionary of English
- n. Any one of numerous species of American singing birds belonging to Vireo and allied genera of the family Vireonidæ. In many of the species the back is greenish, or olive-colored. Called also greenlet.
from The Century Dictionary and Cyclopedia
- n. A genus of small greenish oscine or singing passerine birds of America, the type of the family Vireonidæ, and including most of the species of that family; the greenlets. See Vireonidæ, and cuts under greenlet and solitary.
- n. [lowercase] A greenlet; any bird of the family Vireonidæ, especially of the genus Vireo.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. any of various small insectivorous American birds chiefly olive-grey in color
Latin vireō, a kind of bird, from virēre, to be green.(American Heritage® Dictionary of the English Language, Fourth Edition)