sigmoid colon

British

noun

Also called: sigmoid flexure. the S-shaped bend in the final portion of the large intestine that leads to the rectum

"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

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.

Ozaki died "due to stage 4 sigmoid colon cancer" on Tuesday, his son, Tomoharu, said Wednesday in a statement obtained by AFP.

From Barron's • Dec. 24, 2025

In surgeries like the one Francis most likely underwent, doctors excise a part of the colon called the sigmoid colon where diverticulitis is most common.

From New York Times • Jul. 5, 2021

The inferior mesenteric vein drains the distal third of the large intestine, including the descending colon, the sigmoid colon, and the rectum.

From Textbooks • Jun. 19, 2013

The colon has four regions, the ascending colon, the transverse colon, the descending colon and the sigmoid colon.

From Textbooks • Apr. 25, 2013

The colon consists of four parts, described as the ascending colon, the transverse colon, the descending colon, and the sigmoid flexure, or sigmoid colon.

From Physiology and Hygiene for Secondary Schools by Walters, Francis M.

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