ra·di·o·graph. n. An image produced by radiation, usually by x-rays, and recorded on a radiosensitive surface, such as photographic film, or by photographing a fluoroscopic image. Also called radiogram, shadowgraph, skiagram, skiagraph. tr.v. ra·di·o·graphed, ra·di·o·graph·ing, ra·di·o·graphs. To make a radiograph of.