noun
sigmoid colon
Anatomical term for the S-shaped part of the large intestine before the rectum.
Ｓ状結腸は大腸の一部で、Ｓ字型に曲がっている。
The sigmoid colon is a part of the large intestine and is curved in an S-shape.
From エス (S) + 状 (じょう, '-shaped') + 結腸 (けっちょう, 'colon'), referring to its S-like shape.