1. The monthly discharge of blood from the uterus of nonpregnant women from puberty to menopause
   - menstruation, menses, catamenia, period, flow 
2. [archaic] A solvent

Derived forms: menstrua, menstruums

Type of: discharge, dissolvent, dissolver, dissolving agent, emission, expelling, resolvent, solvent

Encyclopedia: Menstruum

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