Definition of "polygraph"
  1. A device used to gauge physical reactions as a means of determining truthfulness, though its reliability and legal admissibility are contentious
How to use "polygraph" in a sentence
  1. The police chose to administer a polygraph test to verify the suspect's alibi.
  2. Despite the potential inconsistencies, polygraph testing remains a common tool in various investigation procedures.
  3. The attorney objected to the use of polygraph results as evidence in the trial.

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