Definition of polygraph in English:
1A machine designed to detect and record changes in physiological characteristics, such as a person’s pulse and breathing rates, used especially as a lie detector.
- Lie-detector technology has moved on from cumbersome polygraphs that measure physiological responses to questions.
- He invented a lie-detecting machine called the polygraph.
- Traditional lie detectors, known as polygraphs, measure heart and respiratory rates as a person answers questions.
1.1A lie-detector test carried out with a polygraph: if he passed the polygraph, of course, it would authenticate his story
More example sentences
- And Johnny Skakel, his brother, who was one of those witnesses, was tested by polygraph and passed the polygraph.
- They've gone in and they've passed the polygraphs, and they've done the right thing.
- Now the only thing we know about polygraphs is if you pass the first one, you don't get a second one.
- Example sentences
- Marston was a psychologist who paved the way for the polygraphic lie detector test: most authorities on the comic, and indeed Marston himself, don't deny his fascination with strong women.
- The polygraphic recordings were analyzed at 30-second intervals and classified as NREM sleep, REM sleep, or undetermined sleep according to recommended criteria.
- Chart speed was 5 mm/sec, and polygraphic records were scored by hand.
Definition of polygraph in:
- US English dictionary
What do you find interesting about this word or phrase?
Comments that don't adhere to our Community Guidelines may be moderated or removed.
Most popular in the US
Most popular in the UK
Most popular in Canada
Most popular in Australia
Most popular in Spain
Most popular in Malaysia
Most popular in Pakistan