: any of various small usually biting dipteran flies

Examples of gnat in a Sentence

Recent Examples on the Web
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The disease is spread through midges, which are gnat-like biting insects also known as no-see-ums, the center’s website says. Gloria Casas, Chicago Tribune, 18 Sep. 2026 Flies and gnats were also observed throughout the kitchen, and mold was seen on chicken inside the make table. Joseph Hernandez, Kansas City Star, 18 Sep. 2026 While the gnats may not pose a threat to people, one of the more annoying pests is increasing because of the wet conditions. John Shumway, CBS News, 17 Sep. 2026 The Brooklyn Dodgers beat the Chicago Cubs 2-0 in five innings when the game was called because of gnats. Assistant Sports Editor, Los Angeles Times, 15 Sep. 2026 See All Example Sentences for gnat

Word History

Etymology

Middle English, from Old English gnætt; akin to Old English gnagan to gnaw

First Known Use

before the 12th century, in the meaning defined above

Time Traveler
The first known use of gnat was before the 12th century

Cite this Entry

“Gnat.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/gnat. Accessed 20 Sep. 2026.

Kids Definition

: any of various small usually biting two-winged flies

Medical Definition

: any of various small usually biting dipteran flies (as a midge or blackfly)

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