testosterone

US /tɛsˈtɑstəˌron/

UK /tesˈtɔstərəun/

C1
n. (u.)Uncountable NounNatural chemical responsible for the male sex
Men naturally have a lot more testosterone in their bodies which makes them very different from females in behavior and appearance
n. (u.)Uncountable NounA steroid hormone that stimulates development of male secondary sexual characteristics, and is produced mainly in the testes, but also in the ovaries and adrenal cortex.
Testosterone is the primary male sex hormone.
n. (u.)Uncountable NounA synthetic form of this hormone used to treat certain medical conditions.
The doctor prescribed testosterone to treat his hormonal imbalance.
n. (u.)Uncountable NounThe hormone, or a synthetic steroid similar to it, used illicitly to increase muscle mass and strength.
Some athletes misuse testosterone to enhance muscle growth.

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