ovulation
noun
ovu·la·tion
ˌä vyə-ˈlā-shən 
ˌō-
ˌō-
: the discharge of a mature ovum from the ovary
Doctors have found that a few days before ovulation, as many as 30 to 50 egg follicles have begun to mature. Normally, only one will fully ripen … and the rest are lost.—
Mary Duenwald
Mary DuenwaldIn principle, ovulation takes place midway through a 28-day … cycle.—Judith N. Schwartz
Judith N. SchwartzExamples of ovulation in a Sentence
Recent Examples on the Web
For example, in 2023, Federal Trade Commission (FTC) busted popular ovulation tracking app Premom for selling user data without consent.
—Emily Forlini, PC Magazine, 11 July 2025
For starters, the condition typically disrupts and sometimes prevents ovulation, or when an ovary releases a mature egg about halfway through a 28-day menstrual cycle.
—Alisa Hrustic, SELF, 16 June 2025
Preventing Ovulation One way that certain birth control methods work is by preventing ovulation.
—Femi Aremu, Verywell Health, 30 Apr. 2025
Her research shows that reducing fibrosis in the ovary with medication may help preserve hormone production, improve ovulation and possibly slow ovarian decline.
—Karina Zaiets, USA Today, 30 June 2025
See All Example Sentences for ovulation
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Emily Forlini, PC Magazine, 11 July 2025
For starters, the condition typically disrupts and sometimes prevents ovulation, or when an ovary releases a mature egg about halfway through a 28-day menstrual cycle.
—Alisa Hrustic, SELF, 16 June 2025
Preventing Ovulation One way that certain birth control methods work is by preventing ovulation.
—Femi Aremu, Verywell Health, 30 Apr. 2025
Her research shows that reducing fibrosis in the ovary with medication may help preserve hormone production, improve ovulation and possibly slow ovarian decline.
—Karina Zaiets, USA Today, 30 June 2025
See All Example Sentences for ovulation
Cite this Entry
“Ovulation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ovulation. Accessed 19 Jul. 2025.
Copy CitationMedical Definition
ovulation
noun
ovu·la·tion
ˌäv-yə-ˈlā-shən
also
ˌōv-
: the discharge of a mature ovum from the ovary
The persistent high level of estrogen induces an abrupt release of luteinizing hormone from the pituitary gland, and this hormonal surge then triggers ovulation.—Hsiu-Wei Su et al., Bioengineering & Translational Medicine
Hsiu-Wei Su et al., Bioengineering & Translational MedicineLove words? Need even more definitions?
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