Examples of polygraph in a Sentence
They hooked him up to the polygraph and began the test.
She was asked to take a polygraph.
Recent Examples of polygraph from the Web
At that point, Justice sends the file to the FBI, which investigates by reviewing documents, emails, and signals intelligence, and sometimes by doing interviews and polygraph tests.
He was interviewed at least 8 times, with a polygraph.
According to the lawsuit, Doe consistently denied assaulting Roe and passed four polygraph tests during the university's review process, which the attorneys argue point to his innocence.
The strongest evidence to support the belief was the result of a polygraph test indicating the officer was involved in the murder, according to the 1979 Star report.
On April 7, days after Reidy underwent a preliminary polygraph screening in advance of a lie detector test, he was found dead in his garage in an apparent suicide.
Like all STAR winners, Castille must first pass a polygraph test before claiming his prize.
But the co-defendant failed a polygraph test prior to the trial — a fact never revealed to the defense.
Norma was interviewed quite a few times … One of the things that she was asked to do is take a polygraph.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'polygraph.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Did You Know?
With its graph- root, polygraph indicates that it writes out several different results. A polygraph's output consists of a set of squiggly lines on a computer screen, each indicating one function being tested. The functions most commonly measured are blood pressure, breathing rate, pulse, and perspiration, all of which tend to increase when you lie. Polygraphs have been in use since 1924, and have gotten more sensitive over the years, though many experts still believe that they're unreliable and that a prepared liar can fool the machine. They're used not only for law enforcement but perhaps more often by employers--often the police department itself!--who don't want to hire someone who has broken the law in the past but won't admit to it.
First Known Use of polygraph
POLYGRAPH Defined for English Language Learners
Definition of polygraph for English Language Learners
: a test that is done with a lie detector to see if someone is telling the truth
medical Definition of polygraph
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