as in lie detector
an instrument for detecting physical signs of the tension that goes with lying intelligence agents were trained to fool the polygraph

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Recent Examples of polygraph Meanwhile, the Department of Homeland Security started performing polygraph tests on employees in an attempt to learn who might be leaking information, according to four sources familiar with the matter. Josh Feldman, NBC News, 9 Mar. 2025 In sumptuously vibrating chords in the first movement of Schubert’s Fantasy, Olafsson’s touch was a little wetter and more muted, Wang’s percussive and as coolly etched as a polygraph. Zachary Woolfe, New York Times, 20 Feb. 2025 Kelly reports on the polygraph test Bradley took and the questions Kansas City Police Department investigators asked the couple. Lisa Gutierrez, Kansas City Star, 13 Mar. 2025 More politics news: The Department of Homeland Security has begun performing polygraph tests on employees to determine who might be leaking information to the media about immigration operations. Richie Duchon, NBC News, 10 Mar. 2025 See All Example Sentences for polygraph

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“Polygraph.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/polygraph. Accessed 16 Apr. 2025.

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