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An instrument that measures the physiological responses of an individual to questions from an examiner who interprets the results as indicating the likelihood that the individual is telling or not telling the truth in giving the answers.
tr.v. pol·y·graphed, pol·y·graph·ing, pol·y·graphs
To test (a criminal suspect, for example) with a polygraph.
po·lyg′ra·pher (pə-lĭg′rə-fər), po·lyg′ra·phist (-fĭst) n.
1. (Medicine) an instrument for the simultaneous electrical or mechanical recording of several involuntary physiological activities, including blood pressure, skin resistivity, pulse rate, respiration, and sweating, used esp as a would-be lie detector
2. (Printing, Lithography & Bookbinding) a device for producing copies of written, printed, or drawn matter
[C18: from Greek polugraphos writing copiously]
pol•y•graph(ˈpɒl ɪˌgræf, -ˌgrɑf)
1. an instrument for receiving and recording simultaneously tracings of variations in certain body activities.
3. a test using a lie detector.v.t.
4. to test (a person) with a polygraph.
pol`y•graph′ic (-ˈgræf ɪk) adj.
a lie detecting device. — polygrapher, polygraphist, n. — polygraphic, adj.See also: Lies and Lying
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|Noun||1.||polygraph - a medical instrument that records several physiological processes simultaneously (e.g., pulse rate and blood pressure and respiration and perspiration)|
lie detector - a polygraph that records bodily changes sometimes associated with lying
medical instrument - instrument used in the practice of medicine
n (US: = lie detector) → Lügendetektor m
n. polígrafo, instrumento para obtener diversas pulsaciones arteriales y venosas simultáneamente.