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
Appellate court judges reversed the most serious charge against him, finding that a superior court judge failed to hold a hearing to establish the scientific legitimacy of Shotspotter gunfire detectors.
—
Nate Gartrell, Mercury News, 31 Mar. 2026
Some also question whether weapon detectors are necessary in elementary schools, as the bill mandates.
—Jeff Amy, Los Angeles Times, 31 Mar. 2026
The ground station receives that beam with its telescope, focuses it onto a detector, and converts the optical signal back into digital data.
—Tejasri Gururaj, Interesting Engineering, 30 Mar. 2026
These include managing the training schedules for an entire astronaut class (the 2017 class), helping to create tools for the tricky repair of a dark matter detector on the ISS, and helping to advise space policymakers in Canada.
—Elizabeth Howell, Space.com, 30 Mar. 2026
See All Example Sentences for detector
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Nate Gartrell, Mercury News, 31 Mar. 2026
Some also question whether weapon detectors are necessary in elementary schools, as the bill mandates.
—Jeff Amy, Los Angeles Times, 31 Mar. 2026
The ground station receives that beam with its telescope, focuses it onto a detector, and converts the optical signal back into digital data.
—Tejasri Gururaj, Interesting Engineering, 30 Mar. 2026
These include managing the training schedules for an entire astronaut class (the 2017 class), helping to create tools for the tricky repair of a dark matter detector on the ISS, and helping to advise space policymakers in Canada.
—Elizabeth Howell, Space.com, 30 Mar. 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 3 Apr. 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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