lie detector definition, meaning - what is lie detector in the British English Dictionary & Thesaurus - Cambridge Dictionaries Online

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English definition of “lie detector”

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lie detector

noun [C] uk   us  
a piece of equipment used to try to discover if someone is telling lies: Both men refused to take a lie detector test.
Synonym
Translations of “lie detector”
in Chinese (Traditional) 測謊儀…
in Chinese (Simplified) 测谎仪…
(Definition of lie detector from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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