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3 definitions found

From: DICT.TW English-Chinese Dictionary 英漢字典

 sigmoidal
 反曲

From: Webster's Revised Unabridged Dictionary (1913)

 Sig·moid Sig·moid·al a.  Curved in two directions, like the letter S, or the Greek  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.
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From: WordNet (r) 2.0

 sigmoidal
      adj : of or relating to the sigmoid flexure in the large intestine
            [syn: sigmoid]