menstrual cycle

1 definition found

menstrual cycle - WordNet (r) 2.1 (2005) :

  menstrual cycle
      n 1: 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"