Keeler polygraph

Kee·​ler polygraph | \ "-\

Definition of Keeler polygraph

: an instrument for making a graphic record of the changes in blood pressure and pulse and respiration rate of someone being questioned under or as if under suspicion of guilt

called also lie detector

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History and Etymology for Keeler polygraph

after Leonarde Keeler †1949 American criminologist, its inventor

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Comments on Keeler polygraph

What made you want to look up Keeler polygraph? Please tell us where you read or heard it (including the quote, if possible).


to affect and impair by alcohol or a drug

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