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 posed to a subject, in an attempt to detect deception.
noun A mechanical instrument for multiplying copies of a writing, resembling multiple pantographs.
noun A collection of different works, either by one or several authors.
noun A group of letters that represent a single phoneme.
noun Any group of letters treated as a single item.
noun An author who writes on many subjects.
noun A multidimensional directed graph.
verb To administer a polygraph test to.
The FBI polygraphed the suspect but learned nothing because they already knew he was lying.