vir·​eo | \ ˈvir-ē-ˌō How to pronounce vireo (audio) \
plural vireos

Definition of vireo

: any of various small insectivorous American oscine birds (family Vireonidae, especially genus Vireo) that are chiefly olivaceous and grayish in color

Examples of vireo in a Sentence

Recent Examples on the Web The Star Ranch property contains a mix of chaparral, wetlands and stream-side habitat which support endangered species, including the arroyo toad and least Bell’s vireo, a rare songbird. Deborah Sullivan Brennan, San Diego Union-Tribune, 21 Mar. 2021 Bird names can reflect the location where that initial identification was described, as in Philadelphia vireo, (not helpful in identification). Jim Williams, Star Tribune, 8 Sep. 2020 There was a yellow-throated vireo near Nantucket’s West End and a common raven by the Old Sconset Golf Course., 10 Nov. 2019 Two white-eyed vireos were reported, one near Grapevine Road in Gloucester and the other at the Lanesville Community Gardens., 3 Nov. 2019 Worcester County: Sightings from Westborough Wildlife Management Area included a white-eyed vireo, a vesper sparrow, three Lincoln’s sparrows, and 40 swamp sparrows., 28 Oct. 2019 In Boston proper, observers found a yellow-bellied flycatcher at the Public Garden and a white-eyed vireo in the McLaughlin Woods., 20 Oct. 2019 Tiny warbler-like birds called vireos are booming, with 89 million more birds than in 1970 — a jump of 53 percent. Carl Zimmer, New York Times, 19 Sep. 2019 Miscellaneous: Sightings last week included a royal tern at Demarest State Park in Dartmouth and a Philadelphia vireo at Burrage Pond in Hanson., 19 Aug. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'vireo.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of vireo

1834, in the meaning defined above

History and Etymology for vireo

Latin, a small bird, from virēre to be green

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Cite this Entry

“Vireo.” Dictionary, Merriam-Webster, Accessed 18 Jun. 2021.

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More Definitions for vireo


vir·​eo | \ ˈvir-ē-ˌō How to pronounce vireo (audio) \
plural vireos

Kids Definition of vireo

: a small songbird that eats insects and is olive-green or grayish in color

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