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
The agency suggests having emergency supplies in homes and cars, checking smoke and carbon monoxide detectors and replenishing fuel for cars and heating sources.
—
Caroline Neal, Louisville Courier Journal, 20 Jan. 2026
As the positronium atoms passed through the graphene sheet, a portion of the beam was transmitted and detected using a position-sensitive detector.
—Neetika Walter, Interesting Engineering, 20 Jan. 2026
Meanwhile, with more demand for furnaces and boilers, the CFD issued a reminder that residents must have working carbon monoxide detectors.
—Adam Harrington, CBS News, 19 Jan. 2026
Carbon Monoxide Detector This four-in-one detector not only reads carbon monoxide on the road but also detects other combustible, explosive gases, like LPG (methane), propane, and natural gas.
—Jillian Dara, Travel + Leisure, 16 Jan. 2026
See All Example Sentences for detector
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Caroline Neal, Louisville Courier Journal, 20 Jan. 2026
As the positronium atoms passed through the graphene sheet, a portion of the beam was transmitted and detected using a position-sensitive detector.
—Neetika Walter, Interesting Engineering, 20 Jan. 2026
Meanwhile, with more demand for furnaces and boilers, the CFD issued a reminder that residents must have working carbon monoxide detectors.
—Adam Harrington, CBS News, 19 Jan. 2026
Carbon Monoxide Detector This four-in-one detector not only reads carbon monoxide on the road but also detects other combustible, explosive gases, like LPG (methane), propane, and natural gas.
—Jillian Dara, Travel + Leisure, 16 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 27 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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