English definition of Polygraph

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Definition of polygraph

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Polygraph (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.

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Polygraphical :: Polygraphical (a.) Done with a polygraph; as, a polygraphic copy..

Polygraphy :: Polygraphy (n.) Much writing; writing of many books.

Polygraphical :: Polygraphical (a.) Pertaining to, or employed in, polygraphy; as, a polygraphic instrument..

Polygraph :: Polygraph (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.

Polygraphy :: Polygraphy (n.) The art of writing in various ciphers, and of deciphering the same..

Polygraphic :: Polygraphic (a.) Alt. of Polygraphica.

Polygraph :: Polygraph (n.) An instrument for multiplying copies of a writing; a manifold writer; a copying machine.

Polygraph :: Polygraph (n.) In bibliography, a collection of different works, either by one or several authors..

Polygraphy :: Polygraphy (n.) The art or practice of using a polygraph.