polygraph definition by Wordo

Noun

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

.

Verb

To

administer

a

polygraph

test

to

.