Senile /(?)/

Se·nile

Senile

a.
  1. Of or pertaining to old age; proceeding from, or characteristic of, old age; affected with the infirmities of old age; as, senile weakness.

Phrases & Compounds
Senile gangrene
a form of gangrene occuring particularly in old people, and caused usually by insufficient blood supply due to degeneration of the walls of the smaller arteries.