|polygraph (ˈpɒlɪˌɡrɑːf, -ˌɡræf)|
|1.||an instrument for the simultaneous electrical or mechanical recording of several involuntary physiological activities, including blood pressure, skin resistivity, pulse rate, respiration, and sweating, used esp as a would-be lie detector|
|2.||a device for producing copies of written, printed, or drawn matter|
|[C18: from Greek polugraphos writing copiously]|
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