testosterone

American  

[tes-tos-tuh-rohn] / tɛsˈtɒs təˌroʊn /

noun

1. Biochemistry. the sex hormone C 19 H 28 O 2 , secreted by the testes, that stimulates the development of male sexual organs, secondary sexual traits, and sperm.

2. Pharmacology. a commercially prepared form of the sex hormone C 19 H 28 O 2 , originally isolated from bull's testes and now also produced synthetically, used in medicine chiefly for treatment of testosterone deficiency and for certain gynecological conditions.

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testosterone British  

/ tɛˈstɒstəˌrəʊn /

noun

1. a potent steroid hormone secreted mainly by the testes. It can be extracted from the testes of animals or synthesized and used to treat androgen deficiency or promote anabolism. Formula: C 19 H 28 O 2

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testosterone Scientific  

/ tĕs-tŏs′tə-rōn′ /

1. A steroid hormone that is the most potent naturally occurring androgen and that regulates the development of the male reproductive system and male secondary sex characteristics. Testosterone is produced mainly in the testes and is also used as a drug in the treatment of certain medical disorders. Chemical formula: C ₁₉ H ₂₈ O ₂ .

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testosterone Cultural  

1. A male hormone that governs secondary sex characteristics. It is produced in the testes.

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Etymology

Origin of testosterone

First recorded in 1930–35; testo- (combining form of testis ) + ster(ol) + -one

Example Sentences

Concerns about the relative impact of boxers and briefs on fertility, for instance, have given way to today’s murmurs about plastic, testosterone and population rates.

From The Wall Street Journal

"This indicates that the effect stems from eliminating testosterone and its influence on core aging pathways, particularly during early-life development. The largest benefits occur when castration happens early in life," he says.

From Science Daily

“Going on testosterone is the single best decision I have ever made in my life and that is not an exaggeration,” they added.

From Salon

At 17, she was on testosterone, and at 18, she had a double mastectomy.

From The Wall Street Journal

There wouldn’t be much reason to worry “about the direction of men,” she observes, “if it were really as predetermined by how much testosterone you have and how much estrogen I have.”

From Salon