POLYGRAPH


Meaning of POLYGRAPH in English

( n. )

An instrument for detecting deceptive statements by a subject, by measuring several physiological states of the subject, such as pulse, heartbeat, and sweating. The instrument records these parameters on a strip of paper while the subject is asked questions designed to elicit emotional responses when the subject tries to deceive the interrogator. Also called lie detector

Webster's Revised Unabridged English Dictionary.      Пересмотренный полный словарь английского языка Webster.