1. [ noun ] (archaic) a solvent
Related terms: solvent archaism
2. [ noun ] (biology,medicine) the monthly discharge of blood from the uterus of nonpregnant women from puberty to menopause
Synonyms: period menses catamenia flow menstruation

"the women were sickly and subject to excessive menstruation" "a woman does not take the gout unless her menses be stopped"--Hippocrates

Related terms: discharge menorrhagia oligomenorrhea menstruate
Similar spelling:   menstrual