lie detector

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See synonyms for lie detector on Thesaurus.com

noun

a polygraph used to determine changes in certain body activities, as blood pressure, pulse, breathing, and perspiration, the results of which may be interpreted to indicate the truth or falsity of a person's answers under questioning.

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Origin of lie detector

An Americanism dating back to 1905–10

Words nearby lie detector

Liechtenstein, Liechtensteiner, lied, lieder, Liederkranz, lie detector, lie-down, lief, Lie Flat, liege, liegeman

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use lie detector in a sentence

He then convinced Ray to grant a Playboy interview, as part of which he would take a lie detector test.
The Hideous People Behind a ‘Heinously Ugly’ Confederate Statue|Mark Potok|December 19, 2021|The Daily Beast
For a global partnership between the top social media platforms and brands to create brand safety measurement standards to move ahead, the side holding the purse strings wants a lie detector test.
As Facebook commits to independent GARM brand safety verification, getting YouTube, TikTok, Twitter and others on board is a diplomatic dance|Kate Kaye|May 24, 2021|Digiday
Police relied on lie detector tests to guide the investigation, and after both men passed, they were released.
The Murder Chicago Didn’t Want to Solve|by Mick Dumke|February 25, 2021|ProPublica
My doctor insisted that once I filed this piece I lie down on my bed and not get out.
I Tried to Warn You About Sleazy Billionaire Jeffrey Epstein in 2003|Vicky Ward|January 7, 2015|DAILY BEAST

I lie and nod my head yes while wiping the tears on my gray fleece sleeve.
You’re Never ‘Cured’ of an Eating Disorder|Carrie Arnold|December 20, 2014|DAILY BEAST
“I knew it was a lie from the beginning,” Patrick told WLOS.
Beaten By His Church for Being Gay|Justin Jones|December 16, 2014|DAILY BEAST
It is, in fact, legal for police to lie to suspects during interrogations.
How the U.S. Justice System Screws Prisoners with Disabilities|Elizabeth Picciuto|December 16, 2014|DAILY BEAST
But he drew me close And he swallowed me down, Down a dark slimy path Where lie secrets that I never want to know […].
On Torture, Chuck Johnson & Sondheim|James Poulos|December 13, 2014|DAILY BEAST
They are ovoid in shape, and lie in pairs, end to end, often forming short chains.
A Manual of Clinical Diagnosis|James Campbell Todd
However this be, it is hard to say that these fibs have that clear intention to deceive which constitutes a complete lie.
Children's Ways|James Sully
The "bad form" of telling a lie to the head-master is a later illustration of the same thing.
Children's Ways|James Sully
The word of the law shall be fulfilled without a lie, and wisdom shall be made plain in the mouth of the faithful.
The Bible, Douay-Rheims Version|Various
The hut was barely high enough to let him sit up, and long enough to let him lie down—not to stretch out.
The Giant of the North|R.M. Ballantyne

British Dictionary definitions for lie detector

lie detector

noun

a polygraph used esp by a police interrogator to detect false or devious answers to questions, a sudden change in one or more involuntary physiological responses being considered a manifestation of guilt, fear, etcSee polygraph (def. 1), galvanic skin response

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

lie detector

Origin of lie detector

Words nearby lie detector

Words related to lie detector

How to use lie detector in a sentence

British Dictionary definitions for lie detector