POLYGRAPH

Polygraph

A polygraph measures and records several physiological indices such as blood pressure, pulse, respiration, and skin conductivity while the subject is asked and answers a series of questions. The belief underpinning the use of the polygraph is that deceptive answers will produce physiological responses that can be differentiated from those associated with non-deceptive answers.

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polygraph

Noun

  1. A device which measures and records several physiological variables such as blood pressure, heart rate, respiration and skin conductivity while a series of questions is being asked to a subject, in an attempt to detect lies.
  2. An mechanical instrument for multiplying copies of a writing, resembling multiple pantographs.
  3. A collection of different works, either by one or several authors.

Verb

  1. To administer a polygraph test.
    The FBI polygraphed the suspect but learned nothing because they already knew he was lying.


The above text is a snippet from Wiktionary: polygraph
and as such is available under the Creative Commons Attribution/Share-Alike License.

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