[ men-stroo-eyt, -streyt ]
/ ˈmɛn struˌeɪt, -streɪt /

verb (used without object), men·stru·at·ed, men·stru·at·ing.

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 formsun·men·stru·at·ing, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for menstruate

British Dictionary definitions for menstruate


/ (ˈmɛnstrʊˌeɪt) /


(intr) to undergo menstruation

Word Origin for menstruate

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

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

Medicine definitions for menstruate


[ mĕnstrōō-āt′ ]


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