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senility

[si-nil-i-tee] /sɪˈnɪl ɪ ti/
noun
1.
the state of being senile, especially the weakness or mental infirmity of old age.
Origin of senility
1770-1780
1770-80; senile + -ity
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for senility
Contemporary Examples
Historical Examples
  • In youth, all energy; in prime of life, all enterprise and vigour; in senility, all weakness and second childhood.

    The King's Own Captain Frederick Marryat
  • "Glad your senility has not affected that remnant of your common-sense," he declared.

    Kent Knowles: Quahaug Joseph C. Lincoln
  • The older religions, grey in their senility, had no such bribe or threat to conjure with.

    God and my Neighbour Robert Blatchford
  • Is it a sign of senility, or half-thought-out ideas, or what?

    Cyropaedia Xenophon
  • A weakness seemed to have come over the people, as if they were in the last stage of senility.

  • There's a similar touch of ineptitude (senility, perhaps) in the Memorabilia, ad fin.

    Cyropaedia Xenophon
Word Origin and History for senility
n.

1753, from senile + -ity.

Online Etymology Dictionary, © 2010 Douglas Harper
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senility in Medicine

senility se·nil·i·ty (sĭ-nĭl'ĭ-tē)
n.

  1. The state of being senile.

  2. 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.
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11
12
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