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  • Definition
    • menstruation : The periodic discharging of the menses, the flow of blood and cells from the lining of the uterus in unfertilized females of humans and other primates.

      • menstruation : An instance of menstruation, the part of each month during which a fertile woman menstruates.

        • menstruation : # {{l|en|menstruation}}

          • menstruation : ; period

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          • Derivative