hormone

noun
hor·mone | \ˈhȯr-ˌmōn \

Definition of hormone 

1 : a product of living cells that circulates in body fluids (such as blood) or sap and produces a specific often stimulatory effect on the activity of cells usually remote from its point of origin also : a synthetic substance that acts like a hormone

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Other Words from hormone

hormonelike \ˈhȯr-ˌmōn-ˌlīk \ adjective

Examples of hormone in a Sentence

Recent Examples on the Web

Without these hormones, the cancer cell dies or goes dormant. Renae Reints, Fortune, "New Treatment for Aggressive Prostate Cancer Shows 71% Lower Risk of Spread or Death," 28 June 2018 Without these hormones, the cancer cell can die or go dormant. Ese Olumhense, chicagotribune.com, "New treatment lowers risk for death from aggressive prostate cancer by over 70 percent, study finds," 27 June 2018 Those stress hormones can start killing off dendrites - the little branches in brain cells that transmit messages. William Wan, BostonGlobe.com, "What separation from parents does to children: ‘The effect is catastrophic’," 19 June 2018 Those stress hormones can start killing off dendrites — the little branches in brain cells that transmit messages. James Hohmann, Washington Post, "The Daily 202: From ‘I alone can fix it’ to ‘Congress alone can fix it,’ Trump passes the buck on family separation," 19 June 2018 These hormones provide an accelerator and brake that keeps glucose levels tightly controlled. Bradley J. Fikes, sandiegouniontribune.com, "New insulin-making cells can be made in the body, study suggests," 14 June 2018 But when there is no immediate physical danger — if the threat is perceived — those hormones that get released end up wreaking havoc on your body. Sarah Digiulio /, NBC News, "How to stop stressing over money so it doesn't hurt your health," 31 May 2018 The leading theory During a woman’s monthly menstrual cycle, hormones signal the endometrium to thicken. Marie Mccullough, Philly.com, "Frustrated endometriosis patients fuel surge in activism while seeking answers," 12 Apr. 2018 People with Type 2 diabetes produce normal levels of this vital hormone, but their bodies don’t respond appropriately. Carmen Heredia Rodriguez, Washington Post, "Retooled Vaccine Raises Hopes As A Lower-Cost Treatment For Type 1 Diabetes," 13 July 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'hormone.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of hormone

1905, in the meaning defined at sense 1

History and Etymology for hormone

Greek hormōn, present participle of horman to stir up, from hormē impulse, assault; akin to Greek ornynai to rouse — more at rise

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Statistics for hormone

Last Updated

28 Sep 2018

Look-up Popularity

Time Traveler for hormone

The first known use of hormone was in 1905

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More Definitions for hormone

hormone

noun

English Language Learners Definition of hormone

: a natural substance that is produced in the body and that influences the way the body grows or develops

hormone

noun
hor·mone | \ˈhȯr-ˌmōn \

Kids Definition of hormone

: any of various chemical substances produced by body cells and released especially into the blood and having a specific effect on cells or organs of the body usually at a distance from the place of origin

hormone

noun
hor·mone | \ˈhȯr-ˌmōn \

Medical Definition of hormone 

1a : a product of living cells that circulates in body fluids (as blood) or sap and produces a specific often stimulatory effect on the activity of cells usually a distance from its point of synthesis Some people develop insulin resistance, a condition in which response to the hormone is muted and the body must produce excess insulin to maintain healthy blood-glucose concentrations.— Ben Harder, Science News, 18 May 2002

b : a synthetic substance that acts like a hormone

2 : sex hormone I discovered I had the classic signs of perimenopause, the prelude to “the change” when hormones yo-yo before menstrual periods cease altogether …— Beth Witrogen McLeod, Cooking Light, April 2000

Other Words from hormone

hormonelike \-ˌlīk \ adjective

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