The Only Use of
senile
in
The Curious Incident of the Dog in the Night-time
- And I said it was also Uncle Terry, but he was in Sunderland and he was Father's brother, and it was my grandparents, too, but three of them were dead and Grandma Burton was in a home because she had senile dementia and thought that I was someone on television.†
Chpt 23senile = mental weakness caused by old age; or describing a medical condition as caused by old age
Definition:
weakness from old age (especially mental weakness); or describing a medical condition as caused by old age