lie detector


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lie detector

n.
An instrument designed to detect when a person has answered a question falsely.

lie detector

n
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, etc. See polygraph1, galvanic skin response

lie′ detec`tor


n.
an instrument that produces a record of the changes in certain body activities, as blood pressure, pulse, and breathing, which may be interpreted to indicate the truth or falsity of a person's answers under questioning.
Also called polygraph.
[1905–10]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.lie detector - a polygraph that records bodily changes sometimes associated with lyinglie detector - a polygraph that records bodily changes sometimes associated with lying
electrical skin response, electrodermal response, Fere phenomenon, galvanic skin response, GSR, psychogalvanic response, Tarchanoff phenomenon - a change in the electrical properties of the skin in response to stress or anxiety; can be measured either by recording the electrical resistance of the skin or by recording weak currents generated by the body
polygraph - a medical instrument that records several physiological processes simultaneously (e.g., pulse rate and blood pressure and respiration and perspiration)
Translations

lie detector

lie detector

nmacchina della verità
References in periodicals archive ?
Now Stephen, who weighs in at 25st, is wondering if the lie detector test was wrong.
IRELAND'S only professional lie detector is enjoying a seasonal surge in demand as partners suspected of festive frolics are frogmarched in for polygraph tests.
A school teacher has courted trouble by using a bogus lie detector test on her students to determine who had taken chocolates from a jar on Valentine's Day.
Summary: Moscow: Russian police said Monday they planned to use a lie detector to question witnesses .
ZEE group chairman Subhash Chandra's plea to undergo a lie detector test in the presence of his lawyer and after consultation with his doctors got the green light from a Delhi court on Thursday.
Following his release from Portlaoise prison in April 2006, he took a lie detector test arranged by the Irish Sunday Mirror.
JUSTICE Secretary Leila de Lima has asked the National Bureau of Investigation (NBI) to subject inmate Rolito Go, as well as the latter's nephew and sister, to a lie detector test to verify their story that Go had been abducted and had not escaped from the national penitentiary in Muntinlupa City last week.
SEETHING Hearts gaffer Paulo Sergio insists a lie detector test would settle his feud with ref Iain Brines after the pair were set on a new collision course.
Ar Namys parliamentarian Tursunbai Bakir uulu proposed to put the lie detector on the tribune of the Parliament.
MORE than 130 convicted sex offenders across the West Midlands have been ordered to take US-style lie detector tests to establish the risk of them committing further attacks.
Instantly flagging up cheats, the lie detector system measures callers' voices to spot if they're trying to con the system.
The introduction of lie detector technology also seems to be deterring people from make false claims.