from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. An S-shaped section of the colon between the descending section and the rectum. Also called sigmoid flexure.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. the S-shaped section of the large intestine between the descending colon and the rectum

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. the s-shaped curve between the descending colon and the rectum


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