polygraph

poly·graph

noun \ˈpä-lē-ˌgraf\

Definition of POLYGRAPH

: an instrument for recording variations of several different pulsations (as of physiological variables) simultaneously — compare lie detector

— poly·graph·ic \ˌpä-lē-ˈgra-fik\ adjective

Examples of POLYGRAPH

1. They hooked him up to the polygraph and began the test.
2. She was asked to take a polygraph.

First Known Use of POLYGRAPH

1871

Related to POLYGRAPH

Synonyms: lie detector

Rhymes with POLYGRAPH

allograph, autograph, barograph, bathyscaphe, cenotaph, chronograph, circle graph, cryptograph, epigraph, epitaph, half-and-half, hectograph, holograph, homograph, hygrograph, kymograph, lithograph, logograph, micrograph, monograph, pantograph, paragraph, phonograph, photograph, pictograph, quarterstaff, seismograph, serigraph, shadowgraph, shandygaff, spectrograph, sphygmograph, telegraph, thermograph, typograph