ovu·​la·​tion ˌä vyə-ˈlā-shən How to pronounce ovulation (audio) ˌō- How to pronounce ovulation (audio)
: 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
In principle, ovulation takes place midway through a 28-day … cycle.Judith N. Schwartz

Examples of ovulation in a Sentence

Recent Examples on the Web In 2023, the company launched a new line, Frida Fertility, that offers everything from ovulation trackers to at-home insemination kits to help people on their journey to parenthood in the first place. Eliana Dockterman, TIME, 30 May 2024 Progestin may also stop ovulation, so no egg is released. Sarah Klein, Health, 28 May 2024 Most researchers believe that PMS occurs after ovulation due to a dramatic fall in estrogen and progesterone levels in people who are not pregnant.3 Not every person who menstruates will experience PMS symptoms, but most people do.3 Some people may only feel mild effects of PMS. Elizabeth Pratt, Health, 12 May 2024 Along with tracking her cycle and taking ovulation tests, Lawrence also paid closer attention to her diet, sleep, and travel schedule. Maressa Brown, Parents, 8 May 2024 See all Example Sentences for ovulation 

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

Word History


ovule or its source, Medieval Latin ōvulum + -ation

First Known Use

1848, in the meaning defined above

Time Traveler
The first known use of ovulation was in 1848

Dictionary Entries Near ovulation

Cite this Entry

“Ovulation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ovulation. Accessed 17 Jun. 2024.

Medical Definition


ovu·​la·​tion ˌäv-yə-ˈlā-shən How to pronounce ovulation (audio)
ˌōv- How to pronounce ovulation (audio)
: 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

More from Merriam-Webster on ovulation

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