polygraph
nounmasculinetécnico/pu.li.ˈɣɾa.fu/low
po·lí·gra·fo
Definition
An instrument that simultaneously records several physiological functions (such as blood pressure, respiration), commonly used as a 'lie detector'.
The suspect was subjected to a polygraph test.
Polygraph results are considered controversial.
syn
Common collocations
polygraph testpolygraph examinationpolygraph operator
Etymology
Do grego 'polýgraphos', de 'polýs' (muitos) + 'gráphein' (escrever).