Polygraph
n.It is a device or an instrument which is use to detect whether a person is speaking truth or not.It helps to find out the authencity of the statement given by a person.The test performd is called a lie detector test.
Polygraph
A lie-detector machine which records even the slightest variation in blood pressure, body temperature and respiration as questions are put to, and answers elicited from a subject.
polygraph
n. a lie detector device, from Greek for "many" (poly) "message" (graph) since numerous physiological responses are tested when questions are answered.
Polygraph
A lie-detector machine. It works by recording variations in blood pressure, body temperature and respiration of a subject as he answers questions.
LIE DETECTOR - A polygraph, deceptograph, voice stress analyzer, psychological stress evaluator, or any other similar device (whether mechanical or electrical) that is used, or the results of which are used, ...
Expanded Legal Definition of PolygamyPolygraph A lie-detector machine which records even the slightest variation in blood pressure, body temperature and respiration as questions are put to, and answers elicited from a subject.
Current or prospective employees may be asked to submit to a physical examination, a polygraph examination, a psychological evaluation, a test for illegal drugs, or a test for HIV.
 See also: Statement, Answer, Person, Free, Claim
  
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