- sigmoid flexure
- nounthe s-shaped curve between the descending colon and the rectum• Syn: ↑sigmoid colon• Hypernyms: ↑colon• Part Holonyms: ↑large intestine
* * *
noun1. : an S-shaped curve (as in the neck of a bird or turtle)2. or sigmoid colon : the contracted and crooked part of the intestine between the descending colon and the rectum terminating in the latter at the brim of the true pelvis — see digestion illustration* * *
1. Zool. 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. See diag. under intestine.[1780-90]* * *
sigmoid flexure noun (zoology, etc)1. A C-shaped or S-shaped bend2. (also sigmoid colon) the S-shaped terminal part of the descending colon that leads to the rectum• • •Main Entry: ↑sigma* * *
sigmoid flexure,1. Anatomy. the S-shaped bend of the colon just above the rectum.2. Zoology. an S-shaped curve.
Useful english dictionary. 2012.