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Word meaning polygraph

n. An instrument for multiplying copies of a writing; a manifold writer; a copying machine.
n. In bibliography, a collection of different works, either by one or several authors.
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

Crossword clues for polygraph

- Lie detection instrument
- Lie detector

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