menses

The material, consisting of blood and cellular debris from the uterus, discharged during menstruation.

Catamenial or monthly discharges; a periodic constitutional flow of blood or bloody fluid from the mucous coat of the uterus of a female, as a woman, monkey, bitch, or other mammal.

The catamenial or menstrual discharge, a periodic flow of blood or bloody fluid from the uterus or female generative organs.

The discharge of blood mixed with pieces of cellular tissue from the uterus of a female out through her vagina, which occurs roughly every month; menstrual flow.

the monthly discharge of blood from the uterus of nonpregnant women from puberty to menopause