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polygraph
[pol-i-graf, -grahf]
noun
an instrument for receiving and recording simultaneously tracings of variations in certain body activities.
a test using such an instrument to determine if a person is telling the truth.
an apparatus for producing copies of a drawing or writing.
a prolific or versatile author.
verb (used with object)
to test (a person) with a polygraph.
polygraph
/ -ˌɡræf, ˌpɒlɪˈɡræfɪk, ˈpɒlɪˌɡrɑːf /
noun
an instrument for the simultaneous electrical or mechanical recording of several involuntary physiological activities, including blood pressure, skin resistivity, pulse rate, respiration, and sweating, used esp as a would-be lie detector
a device for producing copies of written, printed, or drawn matter
Other Word Forms
- polygraphic adjective
- polygraphist noun
- polygrapher noun
- ˌDZˈ adverb
Word History and Origins
Origin of polygraph1
Word History and Origins
Origin of polygraph1
Example Sentences
"The polygraph didn't confirm the information and when the bodies were eventually recovered from the battlefield, none of them had such injuries," the investigator said.
Every operative admits that infidelity runs rampant in their line of work even before George hooks each up to a polygraph machine.
It begs the question why employees are being subject to polygraph exams,which are notoriously unreliable and inadmissible in court, if DHS has already identified the culprits.
The FBI made him take a polygraph test and William said he passed it.
John Reid, a former Chicago police officer and polygraph expert, and Fred E. Inbau, a criminologist and former director of Northwestern Law School’s Scientific Crime Detection Laboratory, had an answer.
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