Alz·hei·mer's disease (ältshī-mərz, ălts-, ôlts-, ôlz-)
A degenerative disease of the brain, occurring chiefly in elderly people and characterized by disorientation, memory failure, speech disturbances, and the progressive loss of mental capacity. It is associated with the formation of beta-amyloid plaques and neurofibrillary tangles in the cerebral cortex and loss of neurons.
[After Alois Alzheimer (1864-1915), German neurologist.]
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