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Definition of dementia

dementia

/dɪˈmɛnʃə/
de · men · tia
Plural:dementias
•
Adjective:demented
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dementia Lexical Profile

dementia Game Scores & Validity

• noun

1

A chronic or persistent neurological syndrome caused by brain disease or injury and marked by memory disorders, personality changes, and impaired reasoning.

Example

"Early diagnosis and supportive therapy can help patients and their families manage the symptoms of dementia."

Synonyms
View all synonyms for dementia

Word Nuance & Usage

In medical terminology, "dementia" is an umbrella term for a range of neurological syndromes characterized by cognitive decline, rather than a single specific disease; Alzheimer's disease is the most common underlying cause of dementia.

• Rhymes for dementia

• Nearby Words

demeanor
demented
dementedly
dementia
demerara
demerit
demigod

Word Origin & Etymology

Borrowed in the early 19th century directly from Latin dementia ("madness, insanity, folly"), from demens ("out of one's mind"), formed from de- ("away from") + mens ("mind").

Cite this Entry

Wordmom. (2026). Definition of Dementia. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/dementia
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