menstruation

noun

men·​stru·​a·​tion ˌmen(t)-strü-ˈwā-shən How to pronounce menstruation (audio)
men-ˈstrā-
: a cyclical discharging of blood, secretions, and tissue debris from the uterus that recurs in nonpregnant breeding-age primate females at approximately monthly intervals and that is considered to represent a readjustment of the uterus to the nonpregnant state following proliferative changes accompanying the preceding ovulation

Examples of menstruation in a Sentence

a first menstruation can be somewhat scary for girls who are unprepared
Recent Examples on the Web Breastfeeding adults only need 9 mg a day, since menstruation typically stops for months after birth, Michelle Routhenstein, MS, RDN and owner of Entirely Nourished, tells SELF. Lizzy Briskin, SELF, 26 Mar. 2024 These common period symptoms are not the only ones that can occur before menstruation. Anthea Levi, Health, 16 Mar. 2024 One of those businesses belongs to Nadya Okamoto, a TikTok creator with more than 4 million followers and whose brand of menstruation products, August, is carried by national retailers including Target. Nicole Goodkind, CNN, 13 Mar. 2024 Ingesting osha may trigger menstruation in pregnant people, which could cause miscarriage. Barbie Cervoni, Verywell Health, 11 Mar. 2024 But pregnancy, lactation, child-rearing and menstruation are not permanently disabling events, as researchers found among the living Agta of the Philippines who continue to hunt during these life periods. Sarah Lacy, Discover Magazine, 27 Nov. 2023 Two of the more common menstruation disorders are PCOS and dysmenorrhea. Lauryn Higgins, Health, 17 Nov. 2023 Menstrual health startups are using red liquid in tampon advertisements to destigmatize menstruation and stand out in an industry controlled by blue liquid-using giants. Ellie Austin, Fortune, 10 Oct. 2023 Challenges such as inadequate access to safe water and sanitation make the situation worse, causing girls to frequently miss school for reasons like menstruation and the need to travel long distances to fetch safe water for their families. Keeley Teslik, Forbes, 20 Feb. 2024

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'menstruation.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1686, in the meaning defined above

Time Traveler
The first known use of menstruation was in 1686

Dictionary Entries Near menstruation

Cite this Entry

“Menstruation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/menstruation. Accessed 25 Apr. 2024.

Kids Definition

menstruation

noun
men·​stru·​a·​tion ˌmen(t)-strə-ˈwā-shən How to pronounce menstruation (audio)
men-ˈstrā-shən
: a discharging of blood, secretions, and tissue debris from the uterus at periods of approximately one month in female primates of breeding age that are not pregnant

Medical Definition

menstruation

noun
men·​stru·​a·​tion ˌmen(t)-strə-ˈwā-shən, men-ˈstrā- How to pronounce menstruation (audio)
: a discharging of blood, secretions, and tissue debris from the uterus that recurs in nonpregnant human and other primate females of breeding age at approximately monthly intervals and that is considered to represent a readjustment of the uterus to the nonpregnant state following proliferative changes accompanying the preceding ovulation

More from Merriam-Webster on menstruation

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