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Added 9 October 2026

menstruation

/ˌmɛnstɹuːˈeɪʃən/ noun

In Latin: menstrua Wiktionary

noun Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about menstruation at Wordnik → Where our words come from →

The monthly discharge of blood from the uterus of nonpregnant women from puberty to menopause.
the women were sickly and subject to excessive menstruation

Origin

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”).

From Wiktionary, via Kaikki.org (CC BY-SA)

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