Definition of dementia in English:
noun[mass noun] Medicine
A chronic or persistent disorder of the mental processes caused by brain disease or injury and marked by memory disorders, personality changes, and impaired reasoning.
- People with dementia have a degenerative disease of the brain for which there is no cure.
- They support people with conditions such as dementia and Alzheimer's disease.
- Early-stage dementia or Alzheimer's disease may be associated with gluten antibodies.
late 18th century: from Latin, from demens, dement- 'out of one's mind'.
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