n. a lie detector device, from Greek for "many" (poly) "message" ...

1794, "mechanical device for making multiple copies of something written or drawn," from Greek polygraphos "writing much," from polys "much" (see poly-) + graphos "w [..]

a machine designed to detect and record changes in physiological characteristics, such as a person's pulse and breathing rates, used especially as a lie detector.

A device used for the purpose of rendering a diagnostic opinion regarding an individual’s honesty. Associated term(s): Lie Detector Associated law(s): Employee Polygraph Protection Act of 1988 (EPPA) [..]

A lie detector device that tests a person's physiological response (for example, changes in blood pressure and respiration) to questionning. The test's reliability is a matter of ongoing con [..]

noun. a tool which gauges and documents a lot of physiological symptoms of anxiety or emotion. The tool has been widely utilized in the interrogation of criminal suspects and in the screening of emplo [..]

A mechanical device for copying handwritten documents and drawings, invented by English-born John Isaac Hawkins and patented in the United States in 1803 by Hawkins and Charles Wilson Peale. The devic [..]

an instrument that records physiological pulsations ;esp : lie detector poly·graph·ic [pÄ -lē-gra-fik] adj

Popularly known as a lie detector. A device that measures several bodily responses, such as heart rate and blood pressure.

Polygraph refers to instrumentation to test or question individuals for the purpose of detecting deception or verifying truth of statements. A polygraph examiner is any person who purports to be able [..]

(n) a medical instrument that records several physiological processes simultaneously (e.g., pulse rate and blood pressure and respiration and perspiration)

A device for measuring heart rate, respiration, and galvanic skin response. Sometimes called a "lie detector," the polygraph can only detect signs of physiological stress; whether one is lyi [..]