n. 月经, 月经期间

[医] 月经, 行经

[ noun ]
the monthly discharge of blood from the uterus of nonpregnant women from puberty to menopause
<noun.process>
the women were sickly and subject to excessive menstruationa woman does not take the gout unless her menses be stopped
the semen begins to appear in males and to be emitted at the same time of life that the catamenia begin to flow in females

Menstruation \Men`stru*a"tion\, n.
The discharge of the menses; also, the state or the period of
menstruating.