Share this entry
dementia Line breaks: de|men¦tia
Pronunciation: /dɪˈmɛnʃə/

Definition of dementia in English:


[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.
Example sentences
  • 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'.

Words that rhyme with dementia

adventure, bencher, censure, front-bencher, trencher, venture, wencher
Definition of dementia in:
Share this entry

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.

Subscribe to remove adverts and access premium resources