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countable and uncountable, plural testosterones
(biochemistry, steroids) A steroid hormone that stimulates development of male secondary sexual characteristics, produced mainly in the testes, but also in the ovaries and adrenal cortex. quotations examples
Mammalian testes contain almost no testosterone because it is sent out into the body as quickly as it is made.
2019, Bill Bryson, The Body: A Guide for Occupants, Black Swan (2020), page 168
(figuratively) Manly behavior, often of an aggressive or foolishly reckless nature. quotations examples
The MPS is a male orientated and misogynistic environment filled with testosterone, notches on bed posts and conquests.
2023, Louise Casey, Baroness Casey of Blackstock, “9.2.5”, in Baroness Casey Review Final Report: An independent review into the standards of behaviour and internal culture of the Metropolitan Police Service, page 268