A device that measures physiological responses to determine truthfulness.

A test conducted using a polygraph device.

पॉलीग्राफ यंत्र का उपयोग करके किया गया परीक्षण

English Usage: During the polygraph, the examiner asked a series of questions.

Hindi Usage: पॉलीग्राफ के दौरान, परीक्षक ने सवालों की एक श्रृंखला पूछी।