sigmoid colon

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Related to colon sigmoideum: sigmoid colon, sigmoid flexure

sigmoid colon

[′sig‚mȯid ′kō·lən]
(anatomy)
The S-shaped portion of the colon between the descending colon and the rectum.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.