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

 

Alzheimer’s disease

 noun
noun
BrE BrE//ˈæltshaɪməz dɪziːz//
 
; NAmE NAmE//ˈæltshaɪmərz dɪziːz//
 
(also Alzheimer’s)[uncountable] Old age
 
jump to other results
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. compare senile dementia See related entries: Old age Word Origin early 20th cent.: named after Alois Alzheimer (1864–1915), the German neurologist who first identified it.
See the Oxford Advanced American Dictionary entry: Alzheimer’s disease