sigmoid colon

/ˌsɪgˈmɔɪd kəˌloʊn/
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Definitions of sigmoid colon
  1. noun
    the s-shaped curve between the descending colon and the rectum
    synonyms: sigmoid flexure
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    type of:
    colon
    the part of the large intestine between the cecum and the rectum; it extracts moisture from food residues before they are excreted
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