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.
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"Menstrual cycle" Quotes from Famous Books ![]() ![]() — Studies in the Psychology of Sex, Volume 6 (of 6) • Havelock Ellis ![]() ![]() — Studies in the Psychology of Sex, Volume 1 (of 6) • Havelock Ellis |
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