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

World Athletics then insisted that for track events from 400m up to the mile, DSD athletes must reduce their testosterone levels in order to be eligible.

From BBC

The current rules for DSD athletes required them to reduce their testosterone levels to a set level for at least six months to compete in any female category event internationally.

From BBC

It was later revealed she was born with DSD, one outcome of which means she has an elevated level of testosterone - a hormone that can increase muscle mass and strength.

From BBC

The clinic, which has services in Birmingham and Leeds, treats people aged 16 and over, including by prescribing hormones, such as oestrogen or testosterone.

From BBC

The law would still allow puberty blockers and other hormone care for cisgender minors, meaning someone assigned female at birth couldn’t receive a prescription for testosterone, but someone assigned male at birth could.

From Salon