menstruation
noun
men·stru·a·tion
ˌmen(t)-strü-ˈwā-shən 
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
also
: period sense 6c
Examples of menstruation in a Sentence
a first menstruation can be somewhat scary for girls who are unprepared
Recent Examples on the Web
One of them, which doesn’t get much air time, is menstruation.
—
Henry Flynn, Forbes.com, 30 May 2025
From the online reaction, Remington said that other parents are working hard to change the narrative around menstruation for children.
—Daniella Gray, MSNBC Newsweek, 22 May 2025
The products include apparel, carpets or rugs, cleaning products, cookware, cosmetics, dental floss, fabric treatments, children’s products, menstruation products, ski wax, textile furnishings, and upholstered furniture, according to an analysis of the bill.
—Livi Stanford, Hartford Courant, 20 May 2025
The activist will be conducting two science experiments while in space, including research on menstruation management in microgravity.
—Catherine Santino, People.com, 14 Apr. 2025
See All Example Sentences for menstruation
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Henry Flynn, Forbes.com, 30 May 2025
From the online reaction, Remington said that other parents are working hard to change the narrative around menstruation for children.
—Daniella Gray, MSNBC Newsweek, 22 May 2025
The products include apparel, carpets or rugs, cleaning products, cookware, cosmetics, dental floss, fabric treatments, children’s products, menstruation products, ski wax, textile furnishings, and upholstered furniture, according to an analysis of the bill.
—Livi Stanford, Hartford Courant, 20 May 2025
The activist will be conducting two science experiments while in space, including research on menstruation management in microgravity.
—Catherine Santino, People.com, 14 Apr. 2025
See All Example Sentences for menstruation
Cite this Entry
“Menstruation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/menstruation. Accessed 19 Jun. 2025.
Copy CitationKids Definition
menstruation
noun
men·stru·a·tion
ˌmen(t)-strə-ˈwā-shən
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
also
: period sense 3c
Medical Definition
menstruation
noun
men·stru·a·tion
ˌmen(t)-strə-ˈwā-shən, men-ˈstrā-
: 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
also
: period sense 1b
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