menstruum

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Pronunciation

• (British) IPA: /ˈmɛn.stɹʊəm/

Noun

menstruum (plural menstruums)

1. (chiefly, in the plural, historical) The menses; menstrual discharge. [from 14th c.]
2. (historical) A solvent. [from 16th c.]
   • 1665, Robert Hooke, Micrographia:

     [T]hat combustible sulphureous Body is presently prey'd upon and devoured by the aereal incompassing Menstruum, whose office in this Particular I have shewn in the Explication of Charcole.

3. Any liquid medium.

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