polygraph

Meanings

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 posed to a subject, in an attempt to detect deception.
2. A mechanical instrument for multiplying copies of a writing, resembling multiple pantographs.
3. A collection of different works, either by one or several authors.
4. A group of letters that represent a single phoneme.
5. Any group of letters treated as a single item.
6. An author who writes on many subjects.
7. A multidimensional directed graph.

1. To administer a polygraph test to.

Etymology

From poly- + -graph.