adj. & n.
adj. 1 curved like the uncial sigma; crescent-shaped. 2 S-shaped.
n. (in full sigmoid flexure) Anat. the curved part of the intestine between the colon and the rectum.
[ Gk sigmoeides (as SIGMA) ]
adj. & n.
adj. 1 curved like the uncial sigma; crescent-shaped. 2 S-shaped.
n. (in full sigmoid flexure) Anat. the curved part of the intestine between the colon and the rectum.
[ Gk sigmoeides (as SIGMA) ]
Concise Oxford English dictionary. Краткий оксфордский словарь английского языка. 2012