senile : Idioms & Phrases
senile dementia
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noun dementia of the aged; results from degeneration of the brain in the absence of cerebrovascular disease
senile dementia.
WordNet
Senile gangrene
(Med.) , a form of gangrene occuring particularly in old people, and caused usually by insufficient blood supply due to degeneration of the walls of the smaller arteries.
Webster 1913
senile psychosis
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noun dementia of the aged; results from degeneration of the brain in the absence of cerebrovascular disease
senile dementia.