POLYGRAPH

Pronunciation (US):

(GB):

IPA (US):

 Dictionary entry overview: What does polygraph mean? 

• POLYGRAPH (noun)
  The noun POLYGRAPH has 1 sense:

1. a medical instrument that records several physiological processes simultaneously (e.g., pulse rate and blood pressure and respiration and perspiration)

  Familiarity information: POLYGRAPH used as a noun is very rare.

 Dictionary entry details 

• POLYGRAPH (noun)

Sense 1

Meaning:

A medical instrument that records several physiological processes simultaneously (e.g., pulse rate and blood pressure and respiration and perspiration)

Classified under:

Nouns denoting man-made objects

Hypernyms ("polygraph" is a kind of...):

medical instrument (instrument used in the practice of medicine)

Hyponyms (each of the following is a kind of "polygraph"):

lie detector (a polygraph that records bodily changes sometimes associated with lying)

 Context examples 

The researchers point out that this system is more accurate than the famous polygraph –a measuring instrument used for recording physiological responses– and other brain‑imaging techniques used in research, since thermography offers an accuracy of up to 80% (10% higher than that of the polygraph).

(The most reliable scientific model to date for detecting when a person is lying, based on thermography, University of Granada)