E‐lec″tro‐graph (?), n. [Pref. electro + -graph.] 1. An apparatus, controlled by electric devices, used to trace designs for etching.
2. An instrument for the reproduction at a distance of pictures, maps, etc., by means of electricity.
3. An image made by the Röntgen rays; a sciagraph.
4. A cinematograph using the arc light.