senility

[ si-nil-i-tee ]
/ sɪˈnɪl ɪ ti /

noun

the state of being senile, especially the weakness or mental infirmity of old age.

Origin of senility

First recorded in 1770–80; senile + -ity

Example sentences from the Web for senility

Medical definitions for senility

senility
[ sĭ-nĭlĭ-tē ]

n.

The state of being senile.
The mental and physical deterioration characteristic of old age.