electrograph

noun5

1. •
   A recording electrometer; also, the graph produced by such a device.
2. •
   A machine used in gravure printing
3. •
   (historical) An instrument for the reproduction at a distance of pictures, maps, etc., by means of electricity.
4. •
   (historical) A sciagraph.
5. •
   (historical) A cinematograph using the arclight.