sigmoid : Dictionary / Wörterbuch (BEOLINGUS, TU Chemnitz)

English Dictionary: sigmoid	by the DICT Development Group
3 results for sigmoid
From WordNet (r) 3.0 (2006) [wn]:
sigmoid adj curved in two directions (like the letter S) of or relating to the sigmoid flexure in the large intestine Synonym(s): sigmoid, sigmoidal
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Semilunar \Sem`i*lu"nar\, a. Shaped like a half moon. {Semilunar bone} (Anat.), a bone of the carpus; the lunar. See {Lunar}, n. {Semilunar}, [or] {Sigmoid}, {valves} (Anat.), the valves at the beginning of the aorta and of the pulmonary artery which prevent the blood from flowing back into the ventricle.
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Sigmoid \Sig"moid\, Sigmoidal \Sigmoid"al\, a. [Gr. [?][?][?]; [?][?][?] sigma + [?][?][?] form, likeness: cf. F. sigmo[8b]de.] Curved in two directions, like the letter S, or the Greek [sigmat]. {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}.