sigmoid flexure

noun
1.
Zoology. an S -shaped curve in a body part.
2.
Also called sigmoid colon. an S -shaped curve of the large intestine between the descending colon and the rectum.
Origin
1780-90
Examples from the web for sigmoid flexure
  • The sigmoid flexure is gently curved, forming a slight binding.
  • Neither a true sigmoid flexure nor an appendix are present.
British Dictionary definitions for sigmoid flexure

sigmoid flexure

noun
1.
(zoology) an S-shaped curve, as in the necks of certain birds
sigmoid flexure in Medicine

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.