from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun A degenerative disease of the brain, seen primarily in elderly people and associated with the development of abnormal tissues and protein deposits in the cerebral cortex, and characterized by disorientation, memory failure, speech disturbances, and the progressive loss of mental capacity.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun neurology, pathology A
disorderinvolving loss of mental functionsresulting from brain tissuechanges; senile dementiaof Alzheimer's type.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun a progressive form of presenile dementia that is similar to senile dementia except that it usually starts in the 40s or 50s; first symptoms are impaired memory which is followed by impaired thought and speech and finally complete helplessness
from The American Heritage® Dictionary of the English Language, 4th Edition
[After Alois Alzheimer, (1864–1915), German neurologist.]
from Wiktionary, Creative Commons Attribution/Share-Alike License
Named after Alois Alzheimer (June 14, 1864 - December 19, 1915), a German neurologist who described the disease in 1906.
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