第だい二に次じ性せい徴ちょう期き

noun

puberty; period of secondary sex characteristics development

Medical term for the stage of puberty when secondary sexual characteristics appear. Used in clinical or educational contexts.

See also: 第二次性徴

• 第だい二に次じ性せい徴ちょう期きには、身しん長ちょうが急きゅうに伸のびることが多おおい。

  During puberty, height often increases rapidly.

• 保ほ健けん体たい育いくの授じゅ業ぎょうで第だい二に次じ性せい徴ちょう期きについて学まなんだ。

  We learned about puberty in health and physical education class.