<procedure> Establishment of an artificial anus by opening into the sigmoid colon. ... Origin: sigmoido-+ G. Stoma, mouth ... (05 Mar 2000) ... 
(sig″moi-dos´tә-me) surgical creation of an opening from the surface of the body into the sigmoid colon.
Type: Term Pronunciation: sig′moy-dos′tŏ-mē Definitions: 1. Establishment of an artificial anus by opening into the sigmoid colon.
sigmoidostomy The formation of an artificial opening from the body surface into the sigmoid colon and the opening produced by this procedure.