smoke detector

noun

: an alarm that activates automatically when it detects smoke

called also smoke alarm

Examples of smoke detector in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Besides setting off your smoke detector, the layers of grease can be a fire hazard if they’re neglected. — Karen Brewer Grossman, Southern Living, 21 Aug. 2026 Jibran Manna West Boomfield Township Prosecutors allege that two women discovered cameras hidden in smoke detectors in the rooms. — Dejanay Booth-Singleton, CBS News, 13 Aug. 2026 Not hearing the smoke detector in my head, being like, ‘Don’t do this. — Chanel Vargas, InStyle, 9 July 2026 Common household hazardous waste items include anti-freeze, motor oil, batteries, fluorescent bulbs, deck stains, pool chemicals, pesticides and household smoke detectors. — Post-Tribune, Chicago Tribune, 29 June 2026 See All Example Sentences for smoke detector

Word History

First Known Use

circa 1927, in the meaning defined above

Time Traveler
The first known use of smoke detector was circa 1927

Rhymes for smoke detector

See All Rhymes for smoke detector

Browse Nearby Words

smokechaser
smoke detector
smoke door
See all Nearby Words

Cite this Entry

“Smoke detector.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/smoke%20detector. Accessed 27 Aug. 2026.

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Kids Definition

smoke detector

noun
: an alarm that activates automatically when it detects smoke

called also smoke alarm

More from Merriam-Webster on smoke detector

Britannica.com: Encyclopedia article about smoke detector

Last Updated: - Updated example sentences
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