1 testosterone | Definition of testosterone

testosterone

noun
tes·​tos·​ter·​one | \ te-ˈstä-stə-ˌrōn How to pronounce testosterone (audio) \

Definition of testosterone

1 : a hormone that is a hydroxy steroid ketone C19H28O2 produced especially by the testes or made synthetically and that is responsible for inducing and maintaining male secondary sex characters
2 : qualities (such as brawn and aggressiveness) usually associated with males : manliness

Examples of testosterone in a Sentence

Recent Examples on the Web

But Switzerland’s Federal Supreme Court last month suspended that rule, allowing Semenya to continue competing without using medication to lower her testosterone levels. Scott Gleeson, USA TODAY, "Swiss court bars intersex female runner Caster Semenya from 800 at world championships," 31 July 2019 Chemical castration involves injection of medication that blocks testosterone production. CBS News, "Alabama approves chemical castration for some sex offenders," 11 June 2019 Excessive testosterone production is linked with acne, so curbing your levels can lead to clearer skin. SELF, "Here’s Exactly How to Find the Best Birth Control Pill for You," 14 Sep. 2018 Though too much sun can be damaging to the skin, Vitamin D is essential for estrogen production in women and testosterone production in men. The Editors, Marie Claire, "10 Unfiltered Sex Tips for the Best Action You've Ever Gotten," 10 Aug. 2017 Other physiological changes that occur in older age, such as a fall in testosterone levels in men, may not benefit from disease status. Shahid Merali, Quartz, "What exactly is a disease?," 30 July 2019 Antiandrogen drugs, such as the spironolactone pill, work by blocking androgen receptors to decrease the actions and effects of testosterone in the body. Jenn Sinrich, SELF, "5 Signs You're Dealing with Hormonal Acne—and How to Treat It," 2 July 2019 In 2002, a study led by lion expert Craig Packer revealed that males with longer, darker manes had higher testosterone, fewer injuries and were more mature. Emily Toomey, Smithsonian, "Ten Things We’ve Learned About Lions Since Disney’s Original ‘The Lion King’," 19 July 2019 Habituated deer can be dangerous come mating season, when buck testosterone levels increase. Emma Keith, Detroit Free Press, "Michigan biologist on viral deer video: Leave it alone next time," 9 July 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'testosterone.' 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 testosterone

1935, in the meaning defined at sense 1

History and Etymology for testosterone

testis + -o- + -sterone

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More Definitions for testosterone

testosterone

noun

English Language Learners Definition of testosterone

medical : a substance (called a hormone) that occurs naturally in men and male animals
informal + often disapproving : qualities (such as noticeable strength and aggressiveness) that agree with traditional ideas about what men are like

testosterone

noun
tes·​tos·​ter·​one | \ te-ˈstäs-tə-ˌrōn How to pronounce testosterone (audio) \

Medical Definition of testosterone

: a male hormone that is a crystalline hydroxy steroid ketone C19H28O2 produced primarily by the testes or made synthetically and that is the main androgen responsible for inducing and maintaining male secondary sex characteristics — see androgel, axiron

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