Senile definition

sēnīl, sĕnīl
Senile is defined as memory loss or confusion as a result of old age.

When an old person is no longer able to remember things, this can be an example of someone who is senile.

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(geology) At the end of an erosion cycle.

Senile soil.

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Being a disease or condition whose cause is primarily advanced age.

Senile cataracts.

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Relating to or having diminished cognitive function, as when memory is impaired, because of old age.
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(geol.) Nearing the end of an erosion cycle.
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Of, typical of, or resulting from old age.
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Showing the marked deterioration often accompanying old age, esp. mental impairment characterized by confusion, memory loss, etc.
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Relating to or having diminished cognitive function, as when memory is impaired, because of old age.
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Of, or relating to old age.
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(often offensive) Exhibiting the deterioration in mind and body often accompanying old age; doddering.
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Being a disease or condition whose cause is primarily advanced age.

Senile cataracts.

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Origin of senile

  • Latin senīlis proper to or characteristic of old people, aged from senex sen- old sen- in Indo-European roots

    From American Heritage Dictionary of the English Language, 5th Edition

  • From Old French senile, from Latin senÄ«lis (“of or pertaining to old age"), from Latin senex (“old"), from Gaulish and Proto-Indo-European *sénos (“old").

    From Wiktionary