hor·​mone | \ ˈhȯr-ˌmōn How to pronounce hormone (audio) \

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 How to pronounce hormonelike (audio) \ adjective

Examples of hormone in a Sentence

Recent Examples on the Web

Just across the room lie her older brothers, half-clad and surging with hormones. John Domini, Dallas News, "An Italian teenager meets the family she didn't know existed in 'A Girl Returned'," 1 July 2019 His transition from woman to man began in 2013 with hormone treatments that helped him add muscle weight and grow a beard. Elliott Almond, The Mercury News, "One punch at a time for transgender boxer’s fight to compete," 4 June 2019 China and the European Union currently ban imports of U.S. beef raised with hormones. Brody Mullins, WSJ, "U.S. Businesses Ramp Up Lobbying Against Trump’s Tariffs," 12 Sep. 2018 Typically, the packages contain 24 days of pink capsules with oral contraceptive hormones, which are then followed by the maroon placebo capsules. Natasha Bach, Fortune, "Allergan Recalls Birth Control Pills After They're Packaged Out-of-Order," 30 May 2018 Licensed acupuncturist Ioanna Vouloumanou discusses how to treat hot flashes, irregular cycle, sleep disturbance, mood swings and other changes associated with hormones. Linda Mcintosh, sandiegouniontribune.com, "Poker Tourney raises $250K for Boys&Girls Club...community news," 25 May 2018 The drug floods the brain with hormones and neurotransmitters that evoke feelings of trust and well-being, users report. Author: Dave Philipps, Anchorage Daily News, "Ecstasy as PTSD relief for soldiers: ‘I was able to forgive myself’," 2 May 2018 Egg freezing also requires women to inject themselves with hormones powerful enough to produce more than 10 times the normal number of mature eggs at a time. Robin Marantz Henig, WIRED, "Women May Have an Alternative to Freezing Their Eggs," 27 Mar. 2018 One cycle includes stimulating the ovaries with synthetic hormones to produce multiple eggs. Julie Washington, cleveland.com, "The in vitro fertilization process and what's at risk. Your questions answered," 10 Mar. 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

6 Jul 2019

Look-up Popularity

Time Traveler for hormone

The first known use of hormone was in 1905

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More Definitions for hormone



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


hor·​mone | \ ˈhȯr-ˌmōn How to pronounce hormone (audio) \

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


hor·​mone | \ ˈhȯr-ˌmōn How to pronounce hormone (audio) \

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 How to pronounce hormonelike (audio) \ adjective

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More from Merriam-Webster on hormone

Rhyming Dictionary: Words that rhyme with hormone

Spanish Central: Translation of hormone

Nglish: Translation of hormone for Spanish Speakers

Britannica English: Translation of hormone for Arabic Speakers

Britannica.com: Encyclopedia article about hormone

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