|Also called: sigmoid flexure the S-shaped bend in the final portion of the large intestine that leads to the rectum|
|zoology an S-shaped curve, as in the necks of certain birds|
sigmoid colon n.
See sigmoid flexure.
sigmoid flexure n.
The S-shaped section of the colon between the pelvic brim and the third sacral segment, continuous with the rectum. Also called sigmoid colon.