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Definition of Alzheimer's disease noun from the Oxford Advanced American Dictionary

 

Alzheimer's disease

 noun
noun
NAmE//ˈɑltshaɪmərz dɪˌziz//
 
, NAmE//ˈæltshaɪmərz dɪˌziz//
 
, NAmE//ˈɔltshaɪmərz dɪˌziz//
 
(also Alzheimer's) [uncountable]
 
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a serious disease, especially affecting older people, that prevents the brain from functioning normally and causes loss of memory, loss of ability to speak clearly, etc. synonym senile dementia