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gastrointestinal

American  
[gas-troh-in-tes-tuh-nl] / ˌgæs troʊ ɪnˈtɛs tə nl /

adjective

Anatomy.
  1. of, relating to, or affecting the stomach and intestines.


gastrointestinal British  
/ ˌɡæstrəʊɪnˈtɛstɪnəl /

adjective

  1. of or relating to the stomach and intestinal tract

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of gastrointestinal

First recorded in 1825–35; gastro- + intestinal

Vocabulary lists containing gastrointestinal

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Shigella and salmonella are gastrointestinal infections which can cause diarrhoea, stomach cramps and fever.

From BBC • Apr. 7, 2026

He entered the program with a history of gastrointestinal issues and abdominal surgeries.

From Los Angeles Times • Apr. 5, 2026

Between 40 and 70 percent of patients on these drugs report gastrointestinal adverse effects, like acid reflux, chronic diarrhea, and/or constipation.

From Slate • Mar. 22, 2026

Importantly, the compound works only within the gastrointestinal tract, which may help avoid unwanted side effects elsewhere in the body.

From Science Daily • Mar. 18, 2026

“No. It’s just indigestion. Of course, indigestion, also known as dyspepsia, is a term that describes a wide range of gastrointestinal maladies.”

From "The Smartest Kid in the Universe" by Chris Grabenstein