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
Tech born for space The technology draws from breakthroughs at NASA JPL’s Microdevices Laboratory, where engineers use prisms, gratings, detector arrays, and advanced materials like black silicon, one of the darkest substances ever made, to eliminate stray light and boost precision.
—
Neetika Walter, Interesting Engineering, 10 Dec. 2025
An Expandable Six-Layer Security System to support up to six detectors for full 3D surround coverage.
—Malana Vantyler, USA Today, 10 Dec. 2025
Although all experiments are grounded in the same underlying physics, each makes different approximations and methodological choices based on its unique detector design.
—Sharmila Kuthunur, Space.com, 4 Dec. 2025
The second season’s best reveal was that Harrison wasn’t just playing Alex, an awkward but well-meaning New Yorker who, as one of the first real friends Charlie has made in years, learns about her lie-detector abilities and tags along on her exploits.
—Kathryn Vanarendonk, Vulture, 1 Dec. 2025
See All Example Sentences for detector
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Neetika Walter, Interesting Engineering, 10 Dec. 2025
An Expandable Six-Layer Security System to support up to six detectors for full 3D surround coverage.
—Malana Vantyler, USA Today, 10 Dec. 2025
Although all experiments are grounded in the same underlying physics, each makes different approximations and methodological choices based on its unique detector design.
—Sharmila Kuthunur, Space.com, 4 Dec. 2025
The second season’s best reveal was that Harrison wasn’t just playing Alex, an awkward but well-meaning New Yorker who, as one of the first real friends Charlie has made in years, learns about her lie-detector abilities and tags along on her exploits.
—Kathryn Vanarendonk, Vulture, 1 Dec. 2025
See All Example Sentences for detector
Cite this Entry
“Detector.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/detector. Accessed 16 Dec. 2025.
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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