• Polygraph Definition & Synonyms

  1. (n.) An instrument for detecting deceptive statements by a subject, by measuring several physiological states of the subject, such as pulse, heartbeat, and sweating. The instrument records these parameters on a strip of paper while the subject is asked questions designed to elicit emotional responses when the subject tries to deceive the interrogator. Also called lie detector
  2. (n.) An instrument for multiplying copies of a writing; a manifold writer; a copying machine.
  3. (n.) In bibliography, a collection of different works, either by one or several authors.

• Polygraphy Definition & Synonyms

  1. (n.) The art of writing in various ciphers, and of deciphering the same.
  2. (n.) Much writing; writing of many books.
  3. (n.) The art or practice of using a polygraph.