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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
Three people who lived on the other side of the duplex reportedly managed to escape the fire at the home, which didn’t have working smoke detectors.
—Simone Jasper, Charlotte Observer, 28 Jan. 2025
The rooms are equipped with roll-in showers or accessible tubs, strobe-light smoke detectors, and lowered thermostat and light switches.
—Denny Lee, Travel + Leisure, 27 Jan. 2025
The house did not have any working smoke detectors, authorities said.
—Ellie Buckheit, Baltimore Sun, 24 Jan. 2025
After Olympic leaves, Matty and Alfie high-five, then check to see if a camera hidden in the hallway smoke detector picked up Olympic using her passcode to unlock her phone.
—Matt Webb Mitovich, TVLine, 17 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 6 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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