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Sentence examples for lie detector from inspiring English sources

"lie detector" is a correct and usable phrase in written English.
You can use it to refer to a device or process used to determine whether someone is telling the truth or not. For example: "The suspect was asked to take a lie detector test to determine if he had been telling the truth about the crime."

Dictionary

lie detector

noun

A polygraph, a device which measures and records several physiological variables such as blood pressure, heart rate, respiration and skin conductivity while a series of questions is being asked to a subject, in an attempt to detect lies.

synonyms

polygraph

Exact(58)

"Lie detector?" Chan asks.

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The New Yorker

Give me a lie detector".

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The New York Times - Sports

He passed two lie detector tests.

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The New York Times

"We were all subjected to lie detector tests.

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The New York Times

"The lie detector test [idea] came from me," he said.

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The Guardian - Sport

Lawyers announced that the couple had passed lie detector tests.

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The New York Times

But Mr. Rivera failed a lie detector test.

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The New York Times

Q. Are lie detector tests scientific? A. A lie detector, or polygraph, indicates physical changes that occur in response to questions.

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The New York Times - Science

Internal affairs investigators conducted hundreds of interviews and gave lie detector tests to several inmates.

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The New York Times
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Similar(2)

Will Lie Detectors Ever Get Their Day in Court Again?

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Harvard University

Especially as in our show the audience are wired up to lie detectors.

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The Guardian

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