Definition of Alzheimer's disease
1. 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.
Medical Definition of Alzheimer's disease
1.
A progressive, neurodegenerative disease characterised by loss of function and death of nerve cells in several areas of the brain leading to loss of cognitive function such as memory and language.
The cause of nerve cell death is unknown but the cells are recognised by the appearance of unusual helical protein filaments in the nerve cells (neurofibrillary tangles) and by degeneration in cortical regions of brain, especially frontal and temporal lobes.
Alzheimer's disease is the most common cause of dementia.
(22 May 1997)
Lexicographical Neighbors of Alzheimer's Disease
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