Zoology. an S-shaped curve in a body part.
Also called sigmoid colon. an S-shaped curve of the large intestine between the descending colon and the rectum.
Words nearby sigmoid flexure
Origin of sigmoid flexure
First recorded in 1780–90
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for sigmoid colon (1 of 2)
the S-shaped bend in the final portion of the large intestine that leads to the rectumAlso called: sigmoid flexure
British Dictionary definitions for sigmoid colon (2 of 2)
zoology an S-shaped curve, as in the necks of certain birds
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
Medicine definitions for sigmoid colon (1 of 2)
Medicine definitions for sigmoid colon (2 of 2)
The S-shaped section of the colon between the pelvic brim and the third sacral segment, continuous with the rectum.sigmoid colon
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.