老化
Common
Noun
Irregular
Intransitive
Noun
1
noun (common) (futsuumeishi)noun or participle which takes the aux. verb suruintransitive verbnouns which may take the genitive case particle 'no'
ageing;aging;senile deterioration
老化を防ぐためにもっと体を動かすべきだ。
You have to get more exercise in order to stave off senility.