Sigmoid /(?)/
Sig·moid
Sigmoid
a.
- Curved in two directions, like the letter S, or the Greek ς.
Phrases & Compounds
- Sigmoid flexure
- the last curve of the colon before it terminates in the rectum. See Illust. under Digestive.
- Sigmoid valves
- See Semilunar valves, under Semilunar.