senility

[ si-nil-i-tee ]
/ sɪˈnɪl ɪ ti /

noun

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

QUIZZES

FOR POSTERITY’S SAKE, TAKE THIS WORD OF THE DAY QUIZ!

Are words your bailiwick? Take the latest quiz on the words from July 6 to July 12 to find out.
Question 1 of 7
bailiwick

Origin of senility

First recorded in 1770–80; senile + -ity
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

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.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.