polygraph
(pɒligrɑːf , -græf )
Word forms: polygraphs
countable noun
A polygraph or a polygraph test is a test which is used by the police to try to find out whether someone is telling the truth.
Hill's lawyers announced she had taken and passed a polygraph test.
Image of polygraph
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Collocations:
polygraph results take a polygraph
A few have even questioned the accuracy of the polygraph results.
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However, a person's access to sensitive information may be denied if the polygraph results are not favorable.
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His three interviewers agreed that the polygraph results showed that both of his statements were false.
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But all these other guys who claim they're the sailor ... well, get them to take a polygraph test.
Times, Sunday Times
Stone was subsequently asked by prosecutors to take a polygraph test, which he passed.
Times, Sunday Times
Employers also are prevented from dismissing or disciplining an employee for refusing to take a polygraph exam.
Christianity Today
However, he did agree to take a polygraph test, as long as it was administered by someone other than the police.
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Officers stopped questioning him once he agreed to take a polygraph test.
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