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Polygraph vs Polygraphy - What's the difference?

polygraph | polygraphy |

As nouns the difference between polygraph and polygraphy

is that polygraph is 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 while polygraphy is much writing; writing of many books.

As a verb polygraph

is to administer a polygraph test.

polygraph

English

Noun

(en noun)
  • 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.
  • (dated) An mechanical instrument for multiplying copies of a writing, resembling multiple pantographs.
  • (archaic) A collection of different works, either by one or several authors.
  • Synonyms

    * (device recording physiological measurements) lie detector * manifold writer, autopen

    See also

    * ("polygraph" on Wikipedia) * truth serum

    Verb

    (en verb)
  • To administer a polygraph test.
  • The FBI polygraphed the suspect but learned nothing because they already knew he was lying.

    polygraphy

    English

    (Webster 1913)

    Noun

    (-)
  • Much writing; writing of many books.
  • The art of writing in various ciphers, and of deciphering the same.
  • The art or practice of using a polygraph.
  • References

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