noun, noun which may take the genitive case particle 'no'
premature aging; premature ageing
Medical and biological term for aging that occurs earlier than normal. Often used in compound nouns like 早老症 (progeria).
早老症は遺伝子の突然変異によって引き起こされる。
Progeria is caused by a genetic mutation.
早老の兆候が30代で現れた。
Signs of premature aging appeared in his thirties.