gastroenteritis

noun

gas·​tro·​en·​ter·​i·​tis ˌga-strō-ˌen-tə-ˈrī-təs How to pronounce gastroenteritis (audio)
: inflammation of the lining membrane of the stomach and the intestines characterized especially by nausea, vomiting, diarrhea, and cramps

Examples of gastroenteritis in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The virus inflicts acute gastroenteritis — inflammation of the stomach or intestines — on people of all ages in the United States, the CDC said. Hannah Poukish, Sacbee.com, 15 Dec. 2025 The stomach flu, or viral gastroenteritis, is a viral infection in the stomach and intestines and, despite the name, is not related to the flu, the Cleveland Clinic said. Jenna Prestininzi, Freep.com, 11 Dec. 2025 The virus is responsible for nearly 60 percent of foodborne illnesses in the U.S. and is the leading cause of vomiting and diarrhea from acute gastroenteritis. Jasmine Laws, MSNBC Newsweek, 4 Dec. 2025 Norovirus is a highly contagious virus that is the most common cause of viral gastroenteritis, which is an inflammation of the inside lining of the gastrointestinal tract. Youri Benadjaoud, ABC News, 25 Nov. 2025 See All Example Sentences for gastroenteritis

Word History

First Known Use

circa 1829, in the meaning defined above

Time Traveler
The first known use of gastroenteritis was circa 1829

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Cite this Entry

“Gastroenteritis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/gastroenteritis. Accessed 18 Dec. 2025.

Medical Definition

gastroenteritis

noun
gas·​tro·​en·​ter·​i·​tis -ˌent-ə-ˈrīt-əs How to pronounce gastroenteritis (audio)
plural gastroenteritides -ˈrit-ə-ˌdēz How to pronounce gastroenteritis (audio)
: inflammation of the lining membrane of the stomach and the intestines

More from Merriam-Webster on gastroenteritis

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