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frontotemporal dementia

American  
[fruhn-toh-tem-per-uhl di-men-shuh, dih-men-shee-uh] / ˌfrʌn toʊˈtɛm pər əl dɪˈmɛn ʃə, dɪˈmɛn ʃi ə /

noun

  1. one of several brain disorders caused by degeneration of the frontal and/or temporal lobes of the brain and associated with behavioral changes, such as loss of inhibition, or with language impairment, such as difficulty finding words or the loss of one’s ability to speak fluently and grammatically. FTD


Etymology

Origin of frontotemporal dementia

First recorded in 1890–95; fronto- ( def. ) + temporal 2 ( def. )

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.

See Examples For:

Nearly 7 million Americans have dementia — the actor Bruce Willis, who has frontotemporal dementia, is merely the most famous — and as many as 57 million people worldwide.

From MarketWatch Mar. 7, 2026

The results point toward a promising new strategy for treating neurodegenerative diseases such as frontotemporal dementia and Alzheimer's disease.

From Science Daily Nov. 6, 2025

A Westlake Village man living with frontotemporal dementia has something few people with the condition do: the ability to describe his disease.

From Los Angeles Times Sep. 11, 2025

Dr Maura Malpetti, senior research fellow at the University of Cambridge, said the ON-FIRE study was looking at the type of frontotemporal dementia that was not genetic - where diagnoses could not necessarily be predicted.

From BBC Apr. 7, 2025

“We looked at the umbrella of all dementia diagnoses, but certain sub-types like Alzheimer’s or frontotemporal dementia might have stronger links with wildfire PM2.5,” Casey said.

From Salon Jan. 10, 2025

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