menstruation

Pronunciation: /ˌmɛnstɹuːˈeɪʃən/

The English word “menstruation” has 2 meanings listed here.

noun

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.
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”).

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More English words

menstruality
menstrually
menstruant
menstruate
menstruator
menstrue
menstruosity
menstruous

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Definitions are from Wiktionary, extracted by Kaikki.org, and are available under the CC BY-SA 4.0 licence.