'Sigmoid flexure' definitions:
Definition of 'sigmoid flexure'
(from WordNet)
noun
The s-shaped curve between the descending colon and the rectum [syn: sigmoid colon, sigmoid flexure]
Definition of 'Sigmoid flexure'
From: GCIDE
- Sigmoid \Sig"moid\, Sigmoidal \Sig*moid"al\, a. [Gr. ???; ??? sigma + e'i^dos form, likeness: cf. F. sigmo["i]de.] Curved in two directions, like the letter S, or the Greek [sigmat]. [1913 Webster]
- Sigmoid flexure (Anat.), the last curve of the colon before it terminates in the rectum. See Illust. under Digestive.
- Sigmoid valves. (Anat.) See Semilunar valves, under Semilunar. [1913 Webster]