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Definitions from WordNet

Definitions from the Web

Polygraph

Definition:

A polygraph is a machine commonly used for lie detection, measuring physiological responses such as heart rate, blood pressure, and perspiration, believed to indicate deception.

Senses:

Noun:

1. A lie detector or a machine used for polygraph testing.

2. A written record or graph produced by a polygraph.

Verb:

1. To administer a polygraph test to someone.

Samples Sentences:

Noun:

1. The suspect was hooked up to a polygraph to determine their involvement in the crime.

2. The polygraph measures various physiological responses to assess the truthfulness of a person's statements.

Verb:

1. The detective decided to polygraph the witness to gauge the reliability of their testimony.

Possible Related Products:

Polygraph Machine

Lie Detection Books