POLYGRAPH

polygraph

(noun) a medical instrument that records several physiological processes simultaneously (e.g., pulse rate and blood pressure and respiration and perspiration)

Source: WordNet® 3.1


Etymology

Noun

polygraph (plural polygraphs)

A device which measures and records several physiological variables such as blood pressure, heart rate, respiration and skin conductivity while a series of questions is being asked to a subject, in an attempt to detect lies.

Synonym: lie detector

(dated) A mechanical instrument for multiplying copies of a writing, resembling multiple pantographs.

Synonyms: manifold writer, autopen

(archaic) A collection of different works, either by one or several authors.

(linguistics) A group of letters that represent a single phoneme.

Verb

polygraph (third-person singular simple present polygraphs, present participle polygraphing, simple past and past participle polygraphed)

(transitive) To administer a polygraph test to.

Source: Wiktionary


Pol"y*graph, n. Etym: [Gr. polygraphe.]

1. An instrument for multiplying copies of a writing; a manifold writer; a copying machine.

2. In bibliography, a collection of different works, either by one or several authors. Brande & C.

Source: Webster’s Unabridged Dictionary 1913 Edition



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Word of the Day

17 May 2025

ANTHOZOAN

(noun) sessile marine coelenterates including solitary and colonial polyps; the medusoid phase is entirely suppressed


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