metal detector

noun

an electronic device for detecting the presence of metal objects, as one used as a portable sweeping unit or one emplaced in an archway at an airport terminal to detect concealed weapons, explosives, etc.

metal detector

noun

a device that gives an audible or visual signal when its search head comes close to a metallic object embedded in food, buried in the ground, etc

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Example Sentences

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Under the watchful gaze of security guards, dozens of people streamed through metal detectors to enter Temple Israel one evening this month for a town hall meeting on hate crimes and domestic terrorism.

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The telephones, no bigger than a cigarette-lighter, are almost entirely plastic, and have a reputation for being virtually invisible to metal detectors.

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“We couldn’t comprehend it. They put us through metal detectors and our whole bodies were scanned. We had to stand naked in front of the police women and let them check us out.”

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A massive security operation is in place, with 5,000 police officers on duty and attendees having to pass through metal detectors.

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They have called for knife arches, similar to the metal detectors used in courts and at airports, to be installed in secondary schools, saying they "didn't want anyone to go through what we have".

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