noun, masculine/pɔ.li.ɡʁaf/plural: polygraphes
polygraph (device to discern if a subject is lying); polygraph (all other senses referring to objects)
/pɔ.li.ɡʁaf/
polygraph (device to discern if a subject is lying); polygraph (all other senses referring to objects)
polygraph (author who writes on multiple subjects)