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menstruum

[men-stroo-uh m, -struh m] /ˈmɛn stru əm, -strəm/
noun, plural menstruums, menstrua
[men-stroo-uh, -struh] /ˈmɛn stru ə, -strə/ (Show IPA)
1.
a solvent.
Origin of menstruum
1350-1400
1350-1400; special use of Middle English menstruum monthly period < Medieval Latin (in L only plural mēnstrua occurs). See menstrual
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Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for menstruum

menstruum

/ˈmɛnstrʊəm/
noun (obsolete) (pl) -struums, -strua (-strʊə)
1.
a solvent, esp one used in the preparation of a drug
2.
a solid formulation of a drug
Word Origin
C17 (meaning: solvent), C14 (menstrual discharge): from Medieval Latin, from Latin mēnstruus monthly, from mēnsis month; from an alchemical comparison between a base metal being transmuted into gold and the supposed action of the menses
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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menstruum in Medicine

menstruum men·stru·um (měn'strōō-əm)
n. pl. men·stru·ums or men·stru·a (-strōō-ə)
A solvent, especially one used in extracting compounds from plant and animal tissues and preparing drugs.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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