noun, noun or participle which takes 'suru', intransitive verb, noun which may take the genitive case particle 'no'
aging; senile deterioration
Refers to the biological process of growing old, including physical and mental decline. Used in medical, everyday, and figurative contexts.
老化を防ぐために運動を続けている。
I keep exercising to prevent aging.
この細胞は老
These cells age quickly.
祖父は最近、老化が進んで物忘れが多くなった。
My grandfather has recently aged and become more forgetful.