プログレッシブ和英中辞典(第３版)の解説
べんつう【便通】
a bowel movement，((口)) a BM (▼bowel movementの頭文字); (an) evacuation
- 便通はどうですか
Do you have regular bowel movements? - この薬は便通をつける
This medicine 「keeps the bowels active [quickens the action of the bowels]. - 3日間便通がない
I haven't had a 「bowel movement [BM] for three days.