growth hormone

noun

1
: a vertebrate polypeptide hormone that is secreted by the anterior lobe of the pituitary gland and regulates growth
also : a recombinant version of this hormone

called also somatotropin

2

Examples of growth hormone in a Sentence

Recent Examples on the Web
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In one study in athletes, for example, growth hormone raised sprint capacity on a stationary bike by about 4 percent, and the effect disappeared after stopping the treatment. — Lori Youmshajekian, Scientific American, 1 Sep. 2026 That medication, called Palsonify, launched commercially last September to treat acromegaly, a disease in which the pituitary gland produces too much growth hormone, causing some bones, organs and other tissues to grow bigger. — Amy Feldman, Forbes.com, 8 July 2026 In both men and women, testosterone levels typically peak in the morning, while growth hormone levels peak at night during sleep. — The Washington Post, San Diego Union-Tribune, 7 July 2026 The unforgettable fight was part of 2018's Andre the Giant, which looked back at the life of the wrestler, whose size was a result of gigantism caused by excess growth hormone. — Angela Andaloro, PEOPLE, 21 May 2026 See All Example Sentences for growth hormone

Word History

First Known Use

1924, in the meaning defined at sense 1

Time Traveler
The first known use of growth hormone was in 1924

Browse Nearby Words

Cite this Entry

“Growth hormone.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/growth%20hormone. Accessed 24 Sep. 2026.

Kids Definition

growth hormone

noun
: a hormone in plants or animals that regulates growth
especially : one produced by the pituitary gland

Medical Definition

growth hormone

noun
: a vertebrate polypeptide hormone that is secreted by the anterior lobe of the pituitary gland and regulates growth
also : a recombinant version of this hormone

called also somatotropic hormone, somatotropin

see human growth hormone

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