Lie detector
noun, slang
noun, slang ·Uncommon ·College level
Definitions
Noun
- 1 A device designed to detect or indicate when a person is lying by measuring and recording several physiological variables. informal
"It is a lie detector; with its aid one can plumb the bottomless pits of a chap's subconscious mind, and fathom all the mysteries of his subliminal ego."
- 2 a polygraph that records bodily changes sometimes associated with lying wordnet
Example
More examples"It is a lie detector; with its aid one can plumb the bottomless pits of a chap's subconscious mind, and fathom all the mysteries of his subliminal ego."
Etymology
From lie + detector. First use appears c. 1909. See cite below.