| menstruation |
the cyclic, physiologic discharge through the vagina of blood and mucosal tissues from the nonpregnant uterus; it is under hormonal control and normally recurs, usually at approximately four-week intervals, in the absence of pregnancy during the reproductive period (puberty through menopause) of the female of the human and a few species of primates. It is the culmination of the menstrual cycle; see illustration accompanying cycle.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
|
|---|