noun Download 🔗Share Steroid hormone produced primarily in the testes of the male; it is responsible for the development of secondary sex characteristics in the male. Examples : "During puberty, testosterone causes boys to develop deeper voices and grow facial hair. " physiology medicine body biochemistry sex biology anatomy Chat with AIVocabulary GamePractice Reading
noun Download 🔗Share Manly behavior, often of an aggressive or foolishly reckless nature. Examples : "His sudden decision to quit his stable job and buy a motorcycle to travel the country seemed like a surge of testosterone. " character attitude Chat with AIVocabulary GamePractice Reading