[men-stroo-uh l, -struh l]

Origin of menstrual

1350–1400; Middle English menstruall < Latin mēnstruālis having monthly courses, equivalent to mēnstru(a) monthly courses (noun use of neuter plural of mēnstruus monthly; mēnstr- (see semester) + -uus adj. suffix, probably on the model of annuus annual) + -ālis -al1
Related formsin·ter·men·stru·al, adjectivepost·men·stru·al, adjectivepre·men·stru·al, adjectivepre·men·stru·al·ly, adverb Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for postmenstrual


  1. of or relating to menstruation or the menses
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 postmenstrual



late 14c., "pertaining to menses," also (in astronomy) "monthly," from Old French menstruel, from Latin menstrualis "monthly," especially "of or having monthly courses," from menstruus "of a month, every month, monthly, pertaining to a month," from mensis "month" (see moon (n.)).

Online Etymology Dictionary, © 2010 Douglas Harper

postmenstrual in Medicine


  1. Of or occurring in the time following menstruation.


  1. Of or relating to menstruation.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.