[ˈmɛnstrʊəm], (Noun)

Definitions:
- menses

- a solvent


Phrases:

Origin:
late Middle English (in menstruum): from Latin, neuter of menstruus ‘monthly’, from mensis ‘month’. menstruum is by analogy of the supposed agency of a solvent in the transmutation of metals into gold with the supposed action of menses on the ovum