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polygraph

Word family
Related topics: Crime & law, Technology
pol·y·graph /ˈpɒlɪɡrɑːf $ ˈpɑːlɪɡræf/ noun [countableC]  
SCTa piece of equipment that is used by the police to find out whether someone is telling the truth 多导(生理)记录仪〔被警方用于测谎〕 SYN lie detector
 The suspect was given a polygraph test.
给疑犯做了测谎试验。
Examples from the Corpus
pol·y·graph noun
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