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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
Homeowners should also check their carbon monoxide and smoke detectors before the first freeze.
—Lauren Penington, The Denver Post, 24 Oct. 2024
Inside your house, add a smart display and smart smoke detector to keep things safe and sound.
—Sara Beth Bolin, USA TODAY, 24 Sep. 2024
Is there a difference between smoke alarms and smoke detectors?
—Gina Lee Castro, Journal Sentinel, 11 Mar. 2024
The same goes for smoke detectors, another Honeywell lineup staple, which will be identified for servicing or replacement much earlier than before.
—Eric Rosenbaum, CNBC, 14 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 24 Nov. 2024.
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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