detector
noun
de·tec·tor
di-ˈtek-tər 
Examples of detector in a Sentence
using metal detectors to improve safety at airports
a motion detector to thwart burglaries
Recent Examples on the Web
To avoid carbon monoxide leaks, homeowners should install carbon monoxide detectors on each level of their home and near sleeping areas, Nolan said.
—
Caroline Zimmerman, Kansas City Star, 27 Jan. 2026
Reassurance in a shifting energy strategy The low-cost radiation detector emerges as Japan appears to make a major shift in its energy policy.
—Kaif Shaikh, Interesting Engineering, 27 Jan. 2026
But when protons raced both ways around the tunnel and crashed head-on, spraying debris into surrounding detectors, only the 25 particles of the Standard Model were observed.
—Quanta Magazine, 26 Jan. 2026
The National Weather Service Pittsburgh office is reminding people to have emergency supplies for their homes and cars, check smoke and carbon monoxide detectors and replenish fuel for cars and heating sources.
—Madeline Bartos, CBS News, 23 Jan. 2026
See All Example Sentences for detector
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Caroline Zimmerman, Kansas City Star, 27 Jan. 2026
Reassurance in a shifting energy strategy The low-cost radiation detector emerges as Japan appears to make a major shift in its energy policy.
—Kaif Shaikh, Interesting Engineering, 27 Jan. 2026
But when protons raced both ways around the tunnel and crashed head-on, spraying debris into surrounding detectors, only the 25 particles of the Standard Model were observed.
—Quanta Magazine, 26 Jan. 2026
The National Weather Service Pittsburgh office is reminding people to have emergency supplies for their homes and cars, check smoke and carbon monoxide detectors and replenish fuel for cars and heating sources.
—Madeline Bartos, CBS News, 23 Jan. 2026
See All Example Sentences for detector
Cite this Entry
“Detector.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/detector. Accessed 31 Jan. 2026.
Copy CitationKids Definition
detector
noun
de·tec·tor
di-ˈtek-tər
1
: one that detects or warns
a smoke detector
2
: a device in a radio receiver for changing the high-frequency current of radio waves into current that can vibrate a loudspeaker to reproduce the original sound
Medical Definition
detector
noun
de·tec·tor
di-ˈtek-tər
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