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lie detector

 - 5 dictionary results

lie detector

–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.

Origin:
1905–10, Americanism
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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lie detector  
n.  A polygraph used to detect possible deception during an interrogation.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Legal Dictionary

Main Entry: lie de·tec·tor
Function: noun
: an instrument for detecting physiological evidence of the tension that accompanies lying —compare POLYGRAPH
Merriam-Webster's Dictionary of Law, © 1996 Merriam-Webster, Inc.
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Medical Dictionary

Main Entry: lie detector
Pronunciation: 'lI-di-"tek-t&r
Function: noun
: an instrument for detecting physiological evidence (as changes in pulse or bloodpressure) of the tension that accompanies lying
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

lie detector n.
A polygraph used to detect possible deception during an interrogation.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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