Menstruum
//ˈmɛn.stɹʊəm// noun
noun ·Rare ·Advanced level
Definitions
Noun
- 1 The menses; menstrual discharge. historical, in-plural
- 2 the monthly discharge of blood from the uterus of nonpregnant women from puberty to menopause wordnet
- 3 A solvent. historical
"Whenever any menstruum or other additament is employed, together with the fire, to obtain a sulphur or a salt from a body, we may well take the freedom to examine, whether or no the menstruum do barely help to separate the principle obtained by it..."
- 4 (archaic) a solvent wordnet
- 5 Any liquid medium
Example
More examples"Whenever any menstruum or other additament is employed, together with the fire, to obtain a sulphur or a salt from a body, we may well take the freedom to examine, whether or no the menstruum do barely help to separate the principle obtained by it..."
Etymology
From Latin mēnstruum (“menstrual discharge”).
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.