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
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
But while Kyle talked up the accuracy of the lie detectors, they have been called into question since the show was axed almost immediately after Dymond took his own life.
—Max Goldbart, Deadline, 5 Sep. 2024
And does this critical investigation require a DNA test, a lie detector test, or both?
—Lorraine Ali, Los Angeles Times, 1 Aug. 2024
See all Example Sentences for lie detector 
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
But while Kyle talked up the accuracy of the lie detectors, they have been called into question since the show was axed almost immediately after Dymond took his own life.
—Max Goldbart, Deadline, 5 Sep. 2024
And does this critical investigation require a DNA test, a lie detector test, or both?
—Lorraine Ali, Los Angeles Times, 1 Aug. 2024
See all Example Sentences for lie detector
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'lie detector.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
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Cite this Entry
“Lie detector.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/lie%20detector. Accessed 5 Oct. 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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