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[men-stroo-eyt, -streyt] /ˈmɛn struˌeɪt, -streɪt/
verb (used without object), menstruated, menstruating.
to undergo menstruation.
Origin of menstruate
1640-50; v. use of earlier menstruate menstruous, Middle English < Late Latin mēnstruātus, equivalent to mēnstru(a) monthly courses (see menstrual) + -ātus -ate1
Related forms
unmenstruating, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for menstruate
Contemporary Examples
Historical Examples
  • And when the woman is on the point of ceasing to menstruate she does not do so smoothly and comfortably.


    William J. Robinson
  • Many women do not menstruate and do not become pregnant while they are nursing.


    William J. Robinson
  • The consumptive girl did not menstruate because she had not the vitality to do so.

  • It is extremely rare for a woman to conceive who does not menstruate regularly.

    Fruits of Philosophy Charles Knowlton
  • When the girl returns to the tent it is known that she has begun to menstruate.

British Dictionary definitions for menstruate


(intransitive) to undergo menstruation
Word Origin
C17: from Latin menstruāre, from mensis month
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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Word Origin and History for menstruate

1680s, probably a back-formation from menstruation, or else from Latin menstruatus, past participle of menstruare. Related: Menstruated; menstruating.

Online Etymology Dictionary, © 2010 Douglas Harper
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menstruate in Medicine

menstruate men·stru·ate (měn'strōō-āt')
v. men·stru·at·ed, men·stru·at·ing, men·stru·ates
To undergo menstruation.

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