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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
The smoke detectors were later found in a pillowcase in the home’s backyard, according to court documents obtained by WXMI.
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Mike Stunson, Kansas City Star, 28 Jan. 2025
Connect the wiring harness to your new smoke detector.
—
Ashlyn Needham, Southern Living, 17 Jan. 2025
The attic, now divided into three fire compartments — choir, transept, and nave — features advanced thermal cameras, smoke detectors, and a revolutionary water-misting system.
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Thomas Adamson, Los Angeles Times, 6 Dec. 2024
Investigators find a camera hidden in the smoke detector in Shelley’s room… only someone turned it off right before the murder.
—
Kimberly Roots, TVLine, 3 Oct. 2024
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Word History
First Known Use
circa 1927, in the meaning defined above
Time Traveler
The first known use of smoke detector was
circa 1927
Articles Related to smoke detector
Dictionary Entries Near smoke detector
Cite this Entry
“Smoke detector.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/smoke%20detector. Accessed 15 Feb. 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
Nglish: Translation of smoke detector for Spanish Speakers
Britannica.com: Encyclopedia article about smoke detector
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