Children's, Intermediate and Advanced Online English Dictionary & Thesaurus

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polygraph

pol·y·graph

polygraph

 
pronunciation:
pa li graef [or] pa li graf
features:
Word Combinations (noun), Word Parts
part of speech: noun
definition: a device that records changes in bodily functions such as respiration rate, heartbeat, and blood pressure, sometimes used during interrogation of suspected criminals; lie detector.
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derivation: polygraphic (adj.)
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