noun🔗ShareテストステロンSteroid hormone produced primarily in the testes of the male; it is responsible for the development of secondary sex characteristics in the male."During puberty, testosterone causes boys to develop deeper voices and grow facial hair. "思春期の間、テストステロンは男の子の声が低くなり、顔の毛が生える原因となります。physiologymedicinebodybiochemistrysexbiologyanatomyChat with AIVocabulary GamePractice Reading
noun🔗Share男らしい行動、多くの場合、攻撃的または愚かに無謀な性質Manly behavior, often of an aggressive or foolishly reckless nature."His sudden decision to quit his stable job and buy a motorcycle to travel the country seemed like a surge of testosterone. "安定した仕事を辞めてバイクを買って国を旅するという彼の突然の決断は、男らしい行動の急増のように思えた。characterattitudeChat with AIVocabulary GamePractice Reading
