Testosterone Definition

tĕs-tŏstə-rōn
noun
A steroidal male sex hormone, C19H28O2, produced as a white, crystalline substance by isolation from animal testes, or synthesized: used in medicine.
Webster's New World
Any of several synthetic compounds that mimic the physiologic activity of testosterone, used as a drug in medical treatment and a doping agent by athletes.
American Heritage
(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.
Wiktionary

Origin of Testosterone

  • test(is) ster(ol) –one

    From American Heritage Dictionary of the English Language, 5th Edition

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