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.
Check the batteries in your carbon monoxide and smoke detectors. Aaron Valdez, The Enquirer, 2 July 2025 Similarly to smoke detectors, a carbon monoxide detector will produce a quiet chirp when the battery is low. Kamron Sanders, Better Homes & Gardens, 24 June 2025 Jimena Peck Amadou Sow woke to the shrieking of smoke detectors. Raksha Vasudevan, Wired News, 21 May 2025 The smoke detectors in the school were tripped shortly thereafter. Justin Muszynski, Hartford Courant, 16 May 2025 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

Browse Nearby Words

Cite this Entry

“Smoke detector.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/smoke%20detector. Accessed 11 Jul. 2025.

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

Last Updated: - Updated example sentences
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