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Polygraph: meaning, definitions and examples

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polygraph

 

[ หˆpษ’lษชหŒษกrรฆf ]

Noun
Context #1 | Noun

lie detection

A polygraph is a device that measures and records physiological responses such as heart rate, blood pressure, and respiratory rate to determine if someone is being deceptive. It is commonly used in criminal investigations and employment screenings.

Synonyms

deception detection device, lie detector

Examples of usage

  • The police conducted a polygraph test to assess the suspect's honesty.
  • She agreed to take a polygraph to prove her innocence.
  • Legal disputes often involve polygraph results as evidence.
  • The company required a polygraph examination for its prospective employees.

Translations

Translations of the word "polygraph" in other languages:

๐Ÿ‡ต๐Ÿ‡น polรญgrafo

๐Ÿ‡ฎ๐Ÿ‡ณ เคชเฅ‰เคฒเฅ€เค—เฅเคฐเคพเคซ

๐Ÿ‡ฉ๐Ÿ‡ช Polygraph

๐Ÿ‡ฎ๐Ÿ‡ฉ poligraf

๐Ÿ‡บ๐Ÿ‡ฆ ะฟะพะปะธะณะฐั„

๐Ÿ‡ต๐Ÿ‡ฑ poligraf

๐Ÿ‡ฏ๐Ÿ‡ต ใƒใƒชใ‚ฐใƒฉใƒ•

๐Ÿ‡ซ๐Ÿ‡ท polygraphe

๐Ÿ‡ช๐Ÿ‡ธ polรญgrafo

๐Ÿ‡น๐Ÿ‡ท poligraf

๐Ÿ‡ฐ๐Ÿ‡ท ํด๋ฆฌ๊ทธ๋ž˜ํ”„

๐Ÿ‡ธ๐Ÿ‡ฆ ุฌู‡ุงุฒ ูƒุดู ุงู„ูƒุฐุจ

๐Ÿ‡จ๐Ÿ‡ฟ polygraf

๐Ÿ‡ธ๐Ÿ‡ฐ polygraf

๐Ÿ‡จ๐Ÿ‡ณ ๆต‹่ฐŽไปช

๐Ÿ‡ธ๐Ÿ‡ฎ poligraf

๐Ÿ‡ฎ๐Ÿ‡ธ polygraph

๐Ÿ‡ฐ๐Ÿ‡ฟ ะฟะพะปะธะพะณั€ะฐั„

๐Ÿ‡ฌ๐Ÿ‡ช แƒžแƒแƒšแƒ˜แƒ’แƒ แƒแƒคแƒ˜

๐Ÿ‡ฆ๐Ÿ‡ฟ poliqraf

๐Ÿ‡ฒ๐Ÿ‡ฝ polรญgrafo

Etymology

The term 'polygraph' derives from the Greek words 'poly', meaning 'many', and 'grapho', meaning 'to write'. The device was first developed in the early 20th century, with its most notable advancements occurring in the 1920s by John A. Larson, a medical student, and later by Leonarde Keeler. Initially, polygraphs were used primarily for research in physiology but later found their applications in criminal investigations. The technology behind the polygraph has evolved significantly, yet its controversial nature continues to provoke debates regarding its reliability and ethical implications in law enforcement and employment practices.

Word Frequency Rank

Positioned at #22,341, this word is part of extensive vocabulary. It's relatively rare in general usage but may be important in specific fields or formal writing.