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colitis

American

[kuh-lahy-tis, koh-] / kəˈlaɪ tɪs, koʊ- /

noun

Pathology.

inflammation of the colon.

colitis British

/ kɒˈlɪtɪk, kə-, kɒˈlaɪtɪs, ˌkɒləˈnaɪtɪs /

noun

inflammation of the colon

"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

colitis Scientific

/ kə-lī′tĭs /

Inflammation of the colon.

colitis Cultural

An inflammation of the mucous membrane that lines the colon. Colitis is characterized by pain in the abdomen, with alternating episodes of constipation and diarrhea.

Other Word Forms

colitic

adjective

Etymology

Origin of colitis

col- ² + -itis

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.

Lucy Smith-Butler, from Rochdale, Greater Manchester, was diagnosed with ulcerative colitis in 2017.

From BBC • Mar. 24, 2026

Among them were rifampicin, vancomycin, and ciprofloxacin, medications used to treat conditions such as tuberculosis, colitis, and UTIs.

From Science Daily • Feb. 21, 2026

Abivax’s primary drug, obefazimod for ulcerative colitis, is in late-stage clinical trials and not yet approved for sale.

From Barron's • Jan. 12, 2026

J&J is already working with Protagonist to develop an oral treatment for immune diseases including plaque psoriasis and ulcerative colitis and has the exclusive rights to commercialize the product.

From The Wall Street Journal • Oct. 10, 2025

Now, she definitely looks like Mr. Giancarlo of Sunnyside Eldercare during that unfortunate attack of colitis.

From "A Heart in a Body in the World" by Deb Caletti

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023