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Definitions

dementia

[dih-men-shuh, -shee-uh] / dɪˈmɛn ʃə, -ʃi ə /


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Compared with those who did no vigorous activity, individuals with the highest levels saw a 63% lower risk of dementia, a 60% lower risk of type 2 diabetes, and a 46% lower risk of death.

From Science Daily • Mar. 30, 2026

People who have early signs of dementia can sometimes still legally sign certain documents.

From MarketWatch • Mar. 30, 2026

They testified that Jeffries demonstrates "disinhibited" and socially "inappropriate" behaviour, which is part of a range of dementia symptoms, the court heard.

From BBC • Mar. 28, 2026

Mr. Konishi’s poignant debut—translated from the Japanese by Louise Heal Kawai—combines golden-age charm with the harsh reality of having a loved one with dementia.

From The Wall Street Journal • Mar. 27, 2026

There is no doubt that Ebola damages the brain and causes psychotic dementia.

From "The Hot Zone" by Richard Preston