Dementia
/dɪˈmɛnʃiə/
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Definition
(noun) A progressive decline in cognitive function due to damage or disease in the brain beyond what might be expected from normal aging. Areas particularly affected include memory, attention, judgement, language and problem solving.
Sentence Examples
It is very unpleasant to watch how my aunt's dementia keeps getting worse every month.
Multilingualism may prevent dementia.
CEFR Practice Quiz
It is very unpleasant to watch how my aunt's ____ keeps getting worse every month.