noun
dementia of the aged; results from degeneration of the brain in the absence of cerebrovascular disease
• Syn: ↑senile dementia
• Hypernyms: ↑dementia, ↑dementedness
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noun : a severe mental disorder of the aged that is manifested by loss of memory, judgment, and moral and aesthetic values, is often accompanied by confusion, irrational ideas, and disturbed emotionality, and commonly results from organic changes in the brain
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senile psychosis or senile dementia,
a mental disorder caused by atrophy of the brain due to old age, characterized by loss of memory, depression, confusion, delusions, and irrational behavior.
Useful english dictionary. 2012.