プログレッシブ和英中辞典(第4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.