# menstruation

> English word · Noun · IPA /ˌmɛnstɹuːˈeɪʃən/ · frequency rank #32,919

## Definitions
1. The periodic discharging of the menses, the flow of blood and cells from the lining of the uterus in unfertilized females of humans and other primates.
2. An instance of menstruation, the part of each month during which a fertile woman menstruates.

## Etymology
From menstruum + -ation, modelled after Late Latin menstruatio. The word is a cognate with French menstruation, Spanish menstruación, which displaced Old English mōnaþblōd (literally “monthblood”).

## Common misspellings (19)
`emnstruation`, `mennstruation`, `mensrtuation`, `mensstruation`, `menstraution`, `menstrruation`, `menstruaiton`, `menstruasion`, `menstruatino`, `menstruationn`, `menstruatoin`, `menstruattion`, `menstrutaion`, `mensttruation`, `mensturation`, `mentsruation`, `mesntruation`, `mmenstruation`, `mnestruation`

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/menstruation