春しゅん機き発はつ動どう期き

noun

puberty

Formal, somewhat clinical term for the period when sexual maturity begins. Often used in medical or educational contexts.

• 春しゅん機き発はつ動どう期きには、心しん身しんともに大おおきな変へん化かが起おこる。

  During puberty, significant changes occur both mentally and physically.