lie detector
noun
: a polygraph for detecting physiological evidence (such as change in heart rate) of the tension that accompanies lying
Examples of lie detector in a Sentence
The murder suspect failed a lie detector test.
hooked the suspect up to a lie detector before interrogating him about the robbery
Recent Examples on the Web
Riverside, California, investigators linked a man’s DNA to a 1979 cold case murder of a teenage girl, years after the same man passed a lie detector test about the crime, according to authorities.
—
Greg Wehner, Fox News, 25 Nov. 2024
Press play above to see what happens when human lie detector meets skilled liar.
—Matt Webb Mitovich, TVLine, 21 Oct. 2024
Filmed in conjunction with Grande and Erivo’s joint Vanity Fair cover story, the lie detector test also gave the R.E.M. Beauty founder an opportunity to set the record straight on numerous plastic surgery rumors that have followed her over the past couple of years.
—Hannah Dailey, Billboard, 30 Sep. 2024
And last season’s bonus episode saw cast members take a lie detector test, which divulged that the Oppenheim Group founder still had feelings for Stause.
—Erin Clements, Peoplemag, 12 Sep. 2024
See all Example Sentences for lie detector 
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Greg Wehner, Fox News, 25 Nov. 2024
Press play above to see what happens when human lie detector meets skilled liar.
—Matt Webb Mitovich, TVLine, 21 Oct. 2024
Filmed in conjunction with Grande and Erivo’s joint Vanity Fair cover story, the lie detector test also gave the R.E.M. Beauty founder an opportunity to set the record straight on numerous plastic surgery rumors that have followed her over the past couple of years.
—Hannah Dailey, Billboard, 30 Sep. 2024
And last season’s bonus episode saw cast members take a lie detector test, which divulged that the Oppenheim Group founder still had feelings for Stause.
—Erin Clements, Peoplemag, 12 Sep. 2024
See all Example Sentences for lie detector
Dictionary Entries Near lie detector
Cite this Entry
“Lie detector.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/lie%20detector. Accessed 21 Dec. 2024.
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lie detector
noun
: a polygraph for detecting physiological evidence (as change in heart rate) of the tension that accompanies lying
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