zə̇ˈrägrəfē noun
( -es )
Etymology: International Scientific Vocabulary xer- + -graphy
: the formation of pictures or copies of graphic matter by the action of light on an electrically charged photoconductive insulating surface in which the latent image usually is developed with powders that adhere only to the areas that remain electrically charged and in which the image formed by the powders sometimes is transferred to a sheet of paper