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Definitions of sigmoid
  1. adjective
    of or relating to the sigmoid flexure in the large intestine

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  2. curved in two directions (like the letter S)
Definition that contains sigmoid
  • rectum the terminal section of the alimentary canal; from the sigmoid flexure to the anus
  • volvulus abnormal twisting of the intestines (usually in the area of the ileum or sigmoid colon) resulting in intestinal obstruction
  • sigmoid of or relating to the sigmoid flexure in the large intestine
  • vena sigmoideus tributaries of the inferior mesenteric vein; drains the sigmoid colon
  • sigmoidoscopy visual examination (with a sigmoidoscope) of the lower third of the colon in a search for polyps
  • flexible sigmoidoscopy visual examination (with a sigmoidoscope) of the lower third of the colon in a search for polyps
  • sigmoidal of or relating to the sigmoid flexure in the large intestine
  • internal jugular vein a continuation of the sigmoid sinus of the dura mater; joins the subclavian vein to form the brachiocephalic vein
  • sigmoidectomy surgical removal of part or all of the sigmoid colon (usually to remove a malignant tumor)
  • sinus transversus a paired dural sinus; terminates in the sigmoid sinus
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