gastrointestinal

adjective

gas·​tro·​in·​tes·​ti·​nal ˌga-strō-in-ˈte-stə-nᵊl How to pronounce gastrointestinal (audio)
-ˈtes(t)-nəl
: of, relating to, affecting, or including both stomach and intestine

Examples of gastrointestinal 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.
Two years of eating brownies and pizza as meals, never working out, and entrepreneurial pressure had snowballed into gastrointestinal reflux disease. — Emma Burleigh, Fortune, 4 Oct. 2026 The necropsy indicating chronic gastrointestinal disease in two of the dead belugas certainly raises questions about their condition before transport. — Chicago Tribune, 4 Oct. 2026 These compounds, especially 7-OH, bind to the brain’s mu opioid receptors, which help regulate pain, breathing, gastrointestinal activity and more. — Kristen Rogers, CNN Money, 3 Oct. 2026 The two companies are also collaborating on a clinical trial to evaluate the use of two drugs – sonesitatug vedotin and ivonescimab – in combination to treat certain gastrointestinal cancers. — Chloe Taylor,lee Ying Shan,fred Imbert, CNBC, 28 Sep. 2026 See All Example Sentences for gastrointestinal

Word History

First Known Use

1831, in the meaning defined above

Time Traveler
The first known use of gastrointestinal was in 1831

Cite this Entry

“Gastrointestinal.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/gastrointestinal. Accessed 8 Oct. 2026.

Kids Definition

gastrointestinal

adjective
: of, relating to, or including both stomach and intestine

Medical Definition

gastrointestinal

adjective
: of, relating to, or affecting both stomach and intestine
gastrointestinal distress
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