testosterone

[tes-tos-tuh-rohn]

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.

testosterone

/ 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

testosterone

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 .

testosterone

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

Word History and Origins

Origin of testosterone¹

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

Word History and Origins

Origin of testosterone¹

C20: from _testis + _sterol + _-one

Example Sentences

In World Athletics competitions, DSD athletes are required to show that their testosterone is below a certain level.

Read more on The Wall Street Journal

Fiona Apple appears mid-record to sing an entire song — “Letter from an Unknown Girlfriend” — and her unsurprisingly incredible performance switches the mood and brings down the testosterone.

Read more on Salon

Despite the testosterone in the title, no one in “One Battle After Another” throws a mano a mano punch.

Read more on Los Angeles Times

She’s a cupcake of a thing and you just want to rescue her from all this testosterone.

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Supporters also say this method is more humane than requiring DSD athletes to suppress their natural testosterone levels, and will avoid the intense media scrutiny that some athletes have been subjected to.

Read more on BBC