a serious illness affecting someone’s brain and memory in which they gradually stop being able to think or behave in a normal way. Most forms of dementia usually affect only old people.
Synonyms and related words
Specific mental illnesses and general words for mental illness
agoraphobia
ASPD
automatism
dementia
noun countable/uncountable medical
US /dɪˈmenʃə/
Other entries for this word
dementia taxnoun
dementia villagenoun
digital dementianoun
senile dementianoun
Word Forms
singular
dementia
plural
dementias
DEFINITIONS1
1
a serious illness affecting someone’s brain and memory in which they gradually stop being able to think or behave in a normal way. Most forms of dementia usually affect only old people.
Synonyms and related words
Specific mental illnesses and general words for mental illness