DICT.TW Dictionary Taiwan

 men·stru·um /ˈmɛn(t)struəm, strəm/
 溶媒,溶劑

 men·stru·um /ˈmɛn(t)strə(wə)m/ 名詞

 Men·stru·um n.; pl. E. Menstruums L. Menstrua   Any substance which dissolves a solid body; a solvent.
    The proper menstruum to dissolve metal.   --Bacon.
    All liquors are called menstruums which are used as dissolvents, or to extract the virtues of ingredients by infusion or decoction.   --Quincy.
 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.
 ◄ ►

 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 [syn: menstruation,
          menses, catamenia, period, flow]
      [also: menstrua (pl)]