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
Her boyfriend cooperated with police, passed a polygraph test and was cleared as a suspect, the investigators said.
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Gloria Casas, Chicago Tribune, 31 Jan. 2025
Those who truly didn’t believe Silk tasted better based on their polygraph results would get $50.
—Victoria Uwumarogie, Essence, 16 Jan. 2025
When confronted with the new allegations, Mr. Hines immediately demanded a polygraph test and offered his phone for inspection.
—Adeel Hassan, New York Times, 6 Jan. 2025
In between Chris Tapp's nine interrogations, detectives administered seven polygraph exams.
—CBS News, 4 Sep. 2024
See all Example Sentences for polygraph 
Gloria Casas, Chicago Tribune, 31 Jan. 2025
Those who truly didn’t believe Silk tasted better based on their polygraph results would get $50.
—Victoria Uwumarogie, Essence, 16 Jan. 2025
When confronted with the new allegations, Mr. Hines immediately demanded a polygraph test and offered his phone for inspection.
—Adeel Hassan, New York Times, 6 Jan. 2025
In between Chris Tapp's nine interrogations, detectives administered seven polygraph exams.
—CBS News, 4 Sep. 2024
See all Example Sentences for polygraph
Thesaurus Entries Near polygraph
Cite this Entry
“Polygraph.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/polygraph. Accessed 20 Feb. 2025.
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