menstruum


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menstruum

[′men·strə·wəm]
(materials)
A solvent, commonly one that extracts certain principles from entire plant or animal tissues.
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References in periodicals archive ?
The first was run by Peter Lewis, and was concerned with sustainable phytomedicine manufacturing along with taking a clinical-based approach toward using fresh produce with suitable menstruum.
Then dissolve in that menstruum as much gold leaf as you wish and there will proceed from it a wonder, an extraordinary odour like that of violets, which not only from the gold and sea salt, but from everything in the laboratory, will enter your nostrils.