Definition of "testosterone" in English

noun

1. (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.

2. (figuratively) Manly behavior, often of an aggressive or foolishly reckless nature.

   • Mother encouraged James to rely more on intelligence and less on testosterone to deal with the neighbor's son.