forming an image by the action of light on a specially coated charged plate; the latent image is developed with powders that adhere only to electrically charged areas; "edge enhancement is intrinsic in xerography"
highly significant or important especially bringing about or marking the beginning of a new development or era; "epochal decisions made by Roosevelt and Churchill"; "an epoch-making discovery"
roundabout or ambiguous; "attacks from that source amounted to a backhanded compliment to his integrity"; "a backhanded and dishonest way of reaching his goal"