irritable bowel syndrome

noun

: a chronic functional disorder of the colon that is characterized especially by constipation or diarrhea, cramping abdominal pain, and the passage of mucus in the stool
abbreviation IBS

Examples of irritable bowel syndrome 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.
Intermittent fasting, for example, may be unsuitable for people with pre-existing conditions or irritable bowel syndrome. Desireé Oostland, Vogue, 17 July 2025 For people with constipation from irritable bowel syndrome (IBS), fiber—especially the kind found in fruits and vegetables—may help ease symptoms. Morgan Pearson, Verywell Health, 17 July 2025 One in around 141 Americans have celiac disease, according to experts, with a higher prevalence in people of European background or those who have other conditions such as type 1 diabetes or irritable bowel syndrome. Bronwyn Thompson, New Atlas, 9 June 2025 There’s lots of real blood, fiery explosions, impalings and electrocutions, along with irritable bowel syndrome jokes and plenty of kicks to the groin. Mark Kennedy, Boston Herald, 20 June 2025 See All Example Sentences for irritable bowel syndrome

Word History

First Known Use

1943, in the meaning defined above

Time Traveler
The first known use of irritable bowel syndrome was in 1943

Browse Nearby Words

See all Nearby Words

Cite this Entry

“Irritable bowel syndrome.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/irritable%20bowel%20syndrome. Accessed 29 Jul. 2025.

Medical Definition

irritable bowel syndrome

noun
: a chronic functional disorder of the colon that is of unknown etiology but is often associated with abnormal intestinal motility and increased sensitivity to visceral pain and that is characterized by diarrhea or constipation or diarrhea alternating with constipation, abdominal pain or discomfort, abdominal bloating, and passage of mucus in the stool
abbreviation IBS

called also irritable colon, irritable colon syndrome, mucous colitis, spastic colon

More from Merriam-Webster on irritable bowel syndrome

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!