1 文書を見つけるための辞書。

• menstrual cycle
• 月経周期
• a recurring cycle (beginning at menarche and ending at menopause) in which the endometrial lining of the uterus prepares for pregnancy; if pregnancy does not occur the lining is shed at menstruation; "the average menstrual cycle is 28 days"
• 子宮内膜が妊娠の準備をする繰り返しのサイクル（初潮に始まり閉経期に終わる）