polycystic ovary syndrome

noun

: a variable disease that is marked by amenorrhea, hirsutism, obesity, infertility, and ovarian enlargement and is usually initiated by an elevated level of luteinizing hormone, androgen, or estrogen which results in an abnormal cycle of gonadotropin release by the pituitary gland

called also polycystic ovarian syndrome

Examples of polycystic ovary syndrome in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Pregnancy and polycystic ovary syndrome may raise a woman’s risk as well. — Emily Cegielski, Flow Space, 10 Nov. 2026 CoQ10 may be especially beneficial for women with specific fertility challenges, including those with low ovarian reserve (when the ovaries have fewer eggs than expected for their age) and those with polycystic ovary syndrome (PCOS). — Lindsay Curtis, Verywell Health, 29 Sep. 2026 These things are key to the disease, which used to be called polycystic ovary syndrome but was renamed earlier this year to shift the focus away from ovaries and cysts. — Laura Ungar, Los Angeles Times, 17 Aug. 2026 In women, high testosterone levels can lead to the condition PMOS, or polyendocrine metabolic ovarian syndrome, previously referred to as PCOS, or polycystic ovary syndrome. — Nina Shapiro, Forbes.com, 18 July 2026 See All Example Sentences for polycystic ovary syndrome

Word History

First Known Use

1956, in the meaning defined above

Time Traveler
The first known use of polycystic ovary syndrome was in 1956

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Cite this Entry

“Polycystic ovary syndrome.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/polycystic%20ovary%20syndrome. Accessed 14 Nov. 2026.

Medical Definition

polycystic ovary syndrome

noun
: a variable disorder that is marked especially by amenorrhea, hirsutism, obesity, infertility, and ovarian enlargement and is usually initiated by an elevated level of luteinizing hormone, androgen, or estrogen which results in an abnormal cycle of gonadotropin release by the pituitary gland
—abbreviation PCOS

called also polycystic ovarian disease, polycystic ovarian syndrome, polycystic ovary disease, Stein-Leventhal syndrome

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