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).
Progeria is caused by a genetic mutation.
Signs of premature aging appeared in his thirties.
Compound of 早 (early) and 老 (aging). The reading そうろう follows standard on'yomi. The term is primarily used in medical contexts.