menstruum
men·stru·um
noun \ˈmen(t)-strü-əm, -strəm\ plural men·stru·ums or -strua \-strü-ə, -strə\
Definition of MENSTRUUM
: a substance that dissolves a solid or holds it in suspension : solvent
Origin of MENSTRUUM
Medieval Latin, literally, menses, alteration of Latin menstrua
First Known Use: 1559
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