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Dictionary
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polygraph, lie-detector
- noun
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MP3
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| Definitions |
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Def: an instrument for simultaneously recording changes in physiological processes, such as heartbeat, blood pressure, respiration, pulse rate etc
Example: In the USA, the polygraph is used for lie detection by the police.
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| Usage note |
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"Polygraph" is a scientific term, whereas " lie detector" is used in the media and everyday communication. These words are synonyms in everyday language.The word "lie detector" is not used in scientific literature.
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