jikō kōka
1. age hardening; precipitation hardening
Noun
1. age hardening; precipitation hardening
1. arteriosclerosis; hardening of the arteries
1. prohibited item; banned item
1. effective; successful
1. opposite effect; adverse effect
1. effect; effectiveness
2. effects (e.g. sound effects, visual effects, special effects)
1. statute of limitations; lapse of rights after a period of time
2. becoming invalid or void after a set time
3. ageing; aging
1. highly priced; expensive
1. coin
2. hard currency