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

Melissa Green has been taking testosterone for nearly a year.

From BBC

When I was 17, I went with my stepmother to see that nurse practitioner, who prescribed testosterone and estrogen blockers 30 minutes later.

From The Wall Street Journal

Scientists have shown that this ratio reflects the balance of estrogen and testosterone a fetus is exposed to during the first trimester of pregnancy.

From Science Daily

The Enhanced Games' website is advertising a product it says will boost testosterone and longevity, and Martin acknowledges the sale of lifestyle health products will be a key part of its business model.

From BBC

"I have female hormones. And people don't know this, but I have taken hormone treatments to lower my testosterone levels for competitions," the 26-year-old Algerian said in the interview published Wednesday.

From Barron's