English Explanatory Dictionary

lie detector

English dictionary entry

Meanings

noun
  1. A device designed to detect or indicate when a person is lying by measuring and recording several physiological variables.

Pronunciation

LL-Q1860 (eng)-Vealhurl-lie detector.wav

Word forms

lie detector lie detectors lie-detector

Etymology

From lie + detector. First use appears c. 1909. See cite below.

Synonyms

pathometer polygraph

Related words

truth serum
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