hypopituitarism

noun

hy·​po·​pi·​tu·​ita·​rism ˌhī-pō-pə-ˈtü-ə-tə-ˌri-zəm How to pronounce hypopituitarism (audio)
-ˈtü-ə-ˌtri-, 
-ˈtyü-
: deficient production of growth hormones by the pituitary gland
hypopituitary
ˌhī-pō-pə-ˈtü-ə-ˌter-ē How to pronounce hypopituitarism (audio)
-ˈtyü-
adjective

Examples of hypopituitarism 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.
Esther’s said to be afflicted with hypopituitarism, a hormone disorder that stunts her growth. — K. Austin Collins, Rolling Stone, 24 Aug. 2022 Examples include hypothyroidism and hypopituitarism, both of which cause the body to produce less growth hormone. — Mark Gurarie, Health, 1 Nov. 2025 Olivia*, 30, was diagnosed with hypopituitarism at age 15, after having emergency surgery to remove a pituitary tumour which slightly compromised her pituitary gland. — Izzie Price, refinery29.com, 19 Mar. 2024 Still, Diaz’s diagnosis of hypopituitarism means her pituitary gland underproduces several critical hormones. — Lucy Notarantonio, MSNBC Newsweek, 5 Oct. 2025 Diagnosed with hypopituitarism, a rare pituitary condition, Nova Rose was born prematurely at 31 weeks, spending 80 days in the NICU before finally coming home. — Thomas G. Moukawsher, Newsweek, 22 Mar. 2025

Word History

Etymology

International Scientific Vocabulary

First Known Use

1909, in the meaning defined above

Time Traveler
The first known use of hypopituitarism was in 1909

Browse Nearby Words

hypophysis
hypopituitarism
hypopituitary
See all Nearby Words

Cite this Entry

“Hypopituitarism.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hypopituitarism. Accessed 8 Jul. 2026.

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Medical Definition

hypopituitarism

noun
hy·​po·​pi·​tu·​ita·​rism ˌhī-pō-pə-ˈt(y)ü-ət-ə-ˌriz-əm, -ˈt(y)ü-ə-ˌtriz- How to pronounce hypopituitarism (audio)
: deficient production of growth hormones by the pituitary gland
hypopituitary
-ˈt(y)ü-ə-ˌter-ē How to pronounce hypopituitarism (audio)
adjective

More from Merriam-Webster on hypopituitarism

Britannica.com: Encyclopedia article about hypopituitarism

Last Updated: - Updated example sentences
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