sigmoid colon
US /ˈsɪɡ.mɔɪd ˈkoʊ.lən/
UK /ˈsɪɡ.mɔɪd ˈkoʊ.lən/
1.
the S-shaped last part of the large intestine, connecting the descending colon to the rectum
:
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The doctor examined the patient's sigmoid colon during the colonoscopy.
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Inflammation of the sigmoid colon can cause abdominal pain.