metal detector

noun

plural metal detectors
: a device that detects the presence of hidden metal: such as
a
: a security device that scans individuals for dangerous objects (such as weapons)
I boarded the plane armed with several frying thermometers, which set off the metal detectorJeffrey Steingarten
Once inside the theater, the crowd had to pass through an airport-style metal detector as a security precaution.Richard Zoglin
b
: a handheld apparatus that uses electrical induction (see induction sense 4c) to detect the presence of metallic objects (such as coins or jewelry) buried a short distance underground
A local man using a metal detector stumbled upon the site last March. He found two copper brooches, or pins, measuring four inches across.Time for Kids

Examples of metal detector in a Sentence

Recent Examples on the Web
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In June, a man who lives at sea pulled out a metal detector and showed his TikTok following an impressive find: A 22-karat gold ring with a red stone on top. Thomas Westerholm, MSNBC Newsweek, 31 July 2025 All high school students must wear ID badges during the school day and metal detectors have been added to the security measures at Pennington Field. Fousia Abdullahi, Fort Worth Star-Telegram, 22 July 2025 Meanwhile, my assistant Tony — who’s only a little fella — skipped over the rope and walked behind the metal detector without anyone even noticing. Matthew Schnipper, Vulture, 22 July 2025 Measures should include metal detectors or X-ray machines to screen for weapons, the sheriff wrote, telling the committee that his office would be ready to assist with any efforts. Alex Derosier, Twin Cities, 10 July 2025 See All Example Sentences for metal detector

Word History

First Known Use

1880, in the meaning defined above

Time Traveler
The first known use of metal detector was in 1880

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Cite this Entry

“Metal detector.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/metal%20detector. Accessed 10 Aug. 2025.

Last Updated: - Updated example sentences
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