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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.

Loneliness and social isolation are often considered important risk factors for dementia.

From Science Daily • Apr. 14, 2026

They’ll ask for more in-home diagnosis and treatment, telemedicine, wearable devices, support for caregivers and breakthroughs to prevent dementia and cognitive decline.

From The Wall Street Journal • Apr. 13, 2026

Nearly 7 million Americans have this disease, which is one of many forms of dementia.

From MarketWatch • Apr. 9, 2026

Alzheimer's disease is the most common type of dementia, a long-term condition that affects memory and thinking abilities in millions of older adults.

From Science Daily • Apr. 7, 2026

I was uncertain if this referred to Bud or to a literal blue jay, or if, perhaps, we were heading into the territory of senile dementia.

From "The Secret History" by Donna Tartt




Vocabulary lists containing dementia