alzheimer's disease

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Definition
  1. Noun:
    • A progressive neurological disorder: Alzheimer's disease is a specific, irreversible brain disease that causes a continuous decline in memory, thinking, and behavior.
    • A form of dementia: It is the most common cause of dementia, a general term for loss of cognitive abilities severe enough to interfere with daily life.
Usage Examples
  • Noun:
    • The most common early symptom of Alzheimer's disease is difficulty remembering recent events.
    • Research is ongoing to find a cure for Alzheimer's disease.
    • Caring for a loved one with Alzheimer's disease can be challenging.
Advanced Usage
  • "to be diagnosed with Alzheimer's disease": to receive a formal medical identification of having the condition.
    • He was diagnosed with Alzheimer's disease at the age of 68.
  • "the progression of Alzheimer's disease": the course or development of the disease over time.
    • Medications may help slow the progression of Alzheimer's disease.
Variants and Related Words
  • Alzheimer's (noun, informal): A common shortened form of "Alzheimer's disease."
    • She has been living with Alzheimer's for five years.
  • Dementia (noun): The broader category of cognitive decline syndromes of which Alzheimer's disease is a specific type.
Synonyms
  • Senile dementia of the Alzheimer type (SDAT): A more clinical, older term.
  • Alzheimer's: The common abbreviated form.
Notes on Meaning

This term refers specifically to the disease pathology in the brain, characterized by plaques and tangles. It is not a normal part of aging, though age is the greatest known risk factor. The definition distinguishes it by its potential for earlier onset (presenile) compared to other forms of dementia.

Noun
  1. 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