polygraph

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.

It used to be just a plain office with a chair and some instruments on a table. Then they got the new, fancy polygraph system.

A mechanical instrument for multiplying copies of a writing, resembling multiple pantographs.

A collection of different works, either by one or several authors.

A group of letters that represent a single phoneme.

Any group of letters treated as a single item.

A polygraph consists of an unspecified number of adjacent letters. A polygraph need not be recognisable as a word in a language but if we are attempting to decipher a message which is expected to be in English and we find the heptagraph MEETING it is much more promising than if we find a heptagraph such as DKRPIGX.

To administer a polygraph test to.

The FBI polygraphed the suspect but learned nothing because they already knew he was lying.