Polygraph in Visual Dictionary with Synonyms & in Context

Definition of Polygraph in visual dictionary together with synonyms and in real context for GRE candidates and advanced ESL learners. All of the synonyms are also carefully illustrated. /ˈpɒl.ɪ.grɑːf/ US /ˈpɑː.lɪ.græf/ (noun) Definition a special machine as a lie detector used to monitor significant physiological changes in a person such as heartbeat, breathing or pulse changes to determine whether the person is lying or not, lie detector, tester, recorder a test using a polygraph or lie detector Example A polygraph, popularly referred to as a lie detector test, is a device or procedure that measures and records several physiological indicators ...