dementia
//dɪˈmɛnʃə//
Noun
dementiaSingular
dementiasPlural
1
A chronic or progressive syndrome characterized by deterioration in cognitive function beyond what might be expected from normal aging, affecting memory, thinking, orientation, comprehension, calculation, learning capacity, language, and judgment.
Early diagnosis of dementia can help patients and families plan for the future.
2
A state of severe mental impairment or confusion, often associated with old age or brain disease.
His grandmother was diagnosed with dementia after showing signs of severe confusion and memory loss.