POLYGRAPH is validvalid

to operate a machine that records multiple physiological characteristics [v POLYGRAPHED, POLYGRAPHING, POLYGRAPHS] : POLYGRAPHER [n]

109,449 of 196,601 in NWL2023·also valid in CSW24

an instrument for multiplying copies of a writing [n -S] / to copy by polygraph [v -ED, -ING, -S]