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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.

By comparing each sample to the Unified Human Gastrointestinal Genome catalogue, researchers found that CAG-170 stood out as the group within the 'hidden microbiome' most strongly associated with good health.

From Science Daily • Feb. 14, 2026

These conversations naturally bring up anxiety and pain for parents, said Hadley Maya, a clinical social worker at the Center for Young Onset Colorectal and Gastrointestinal Cancer at Memorial Sloan Kettering Cancer Center.

From Seattle Times • Mar. 22, 2024

She is also a member of the Gastrointestinal Cancer and Sarcoma Disease Centers at Dana-Farber Cancer Institute, a leading cancer hospital.

From Washington Times • Aug. 10, 2022

One study presented at the 2021 European Society for Medical Oncology World Congress on Gastrointestinal Cancer found that antibiotic use was associated with an increased risk of both early- and late-onset colon cancer.

From Scientific American • Nov. 18, 2021

Worm colic is discussed under the heading "Gastrointestinal parasites," page 90.

From Special Report on Diseases of the Horse by Michener, Charles B.