noun
Refers to the period of life between childhood and adulthood, typically the teenage years.
青春期は心も体も大きく変化する時期だ。
Adolescence is a time when both mind and body undergo great changes.
彼は青春期にさしかかっている。
He is approaching adolescence.
Compound of 青春 (せいしゅん, 'youth') and 期 (き, 'period'). The exact historical derivation is uncertain, but the spelling is conventionally associated with the meaning 'period of youth'.