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n. pl. men·stru·ums or men·stru·a (-stro͞o-ə)
A solvent, especially one used in extracting compounds from the tissues of organisms.
[Middle English, menstruation, from Medieval Latin mēnstruum, sing. of Latin mēnstrua, menses; see menstruate.]
n, pl -struums or -strua (-strʊə)
1. (Pharmacology) a solvent, esp one used in the preparation of a drug
2. (Pharmacology) a solid formulation of a drug
[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]
1. able to pay all just debts.
2. having the power of dissolving; causing solution.n.
3. a substance that dissolves another to form a solution: Water is a solvent for sugar.
4. something that solves or explains.
[1620–30; < Latin solvent-, s. of solvēns, present participle of solvere to loosen. See solve, -ent]
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|Noun||1.||menstruum - (archaic) a solvent|
|2.||menstruum - 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|
expelling, discharge, emission - any of several bodily processes by which substances go out of the body; "the discharge of pus"
hypermenorrhea, menorrhagia - abnormally heavy or prolonged menstruation; can be a symptom of uterine tumors and can lead to anemia if prolonged
oligomenorrhea - abnormally light or infrequent menstruation