What is another word for polygraph machine?
Pronunciation: [pˈɒlɪɡɹˌaf məʃˈiːn] (IPA) 
The polygraph machine is a device that is designed to measure and record several physiological responses simultaneously. It is used to detect changes in heart rate, breathing, and other physical indicators. Although the term "polygraph machine" is commonly used, there are several synonyms that can be used to describe this device. Some of these include lie detector, truth verifier, physiological testing machine, and polygraph instrument. Additionally, in the legal field, it is also referred to as a forensic psychology instrument or forensic lie detection machine. Regardless of the term used, the primary purpose of this equipment is to determine whether or not someone is telling the truth.
