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An S-shaped section of the colon between the descending section and the rectum. Also called sigmoid flexure.
(Anatomy) the S-shaped bend in the final portion of the large intestine that leads to the rectum. Also called: sigmoid flexure
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|Noun||1.||sigmoid colon - the s-shaped curve between the descending colon and the rectum|
large intestine - beginning with the cecum and ending with the rectum; includes the cecum and the colon and the rectum; extracts moisture from food residues which are later excreted as feces
colon - the part of the large intestine between the cecum and the rectum; it extracts moisture from food residues before they are excreted