1rare Of or relating to the study of materials by electron diffraction.
Designating a printing process in which ink is transferred by electrostatic attraction instead of by pressure; of or relating to this process.
Designating an image intensifier in which photoelectrons are accelerated and focused on to a sensitive emulsion to form an image; relating to or involving such a device.
1930s; earliest use found in Journal of Chemical Physics. From electron + -o- + -graphic.