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menstruum n. 溶媒,溶剂 溶媒,溶剂 menstruum n 1: (archaic) a solvent 2: the monthly discharge of blood from the uterus of nonpregnant women from puberty to menopause; "the women were sickly and subject to excessive menstruation"; "a woman does not take the gout unless her menses be stopped"--Hippocrates; "the semen begins to appear in males and to be emitted at the same time of life that the catamenia begin to flow in females"-- Aristotle [synonym: {menstruation}, {menses}, {menstruum}, {catamenia}, {period}, {flow}] Menstruum \Men"stru*um\, n.; pl. E. {Menstruums}, L. {Menstrua}.
[L. menstruus. See {Menstruous}.] Any substance which dissolves a solid body; a solvent. [1913 Webster] The proper menstruum to dissolve metal. --Bacon. [1913 Webster] All liquors are called menstruums which are used as dissolvents, or to extract the virtues of ingredients by infusion or decoction. --Quincy. [1913 Webster] Note: The use is supposed to have originated in some notion of the old chemists about the influence of the moon in the preparation of dissolvents. --Johnson. [1913 Webster]
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