Meaning & use
Polygraphy
Last updated
The practice or technique of administering polygraph, or lie-detector, examinations to assess the truthfulness of a person's statements.
See it in a sentence
The agency requires new recruits to undergo polygraphy as part of their background check.
Critics argue that polygraphy lacks the scientific reliability courts often assume it has.
A note on using this word
The term has an older, distinct historical sense referring to the art of writing in multiple scripts or ciphers, a meaning largely obsolete today.
Words with a similar meaning
lie-detector testing
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