Definitions for: Senility

[n] the state of being senile
[n] mental infirmity as a consequence of old age; sometimes shown by foolish infatuations

Webster (1913) Definition: Se*nil"i*ty, n. [Cf. F. s['e]nilit['e].]
The quality or state of being senile; old age.

Synonyms: dotage, second childhood

See Also: age, eld, geezerhood, old age, oldness, years