menstruum has definitions from the fields of biology,medicine,chemistry
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

Examples

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

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