polygraph

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English[edit]

Etymology[edit]

poly- "much" + -graph "writing"

Noun[edit]

polygraph (plural polygraphs)

chart recorder often used with a
polygraph
  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. (dated) An mechanical instrument for multiplying copies of a writing, resembling multiple pantographs.
  3. (archaic) A collection of different works, either by one or several authors.

Synonyms[edit]

Thomas Jefferson's polygraph copying device

See also[edit]

Translations[edit]

Verb[edit]

polygraph (third-person singular simple present polygraphs, present participle polygraphing, simple past and past participle polygraphed)

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