·add. ·vt To make a radiograph of.
II. Radiograph ·add. ·noun An instrument for measuring and recording solar radiation.
III. Radiograph ·noun A picture produced by the Rontgen rays upon a sensitive surface, photographic or fluorescent, especially a picture of opaque objects traversed by the rays.
IV. Radiograph ·add. ·noun An image or picture produced upon a sensitive surface, as of a photographic plate, by some form of radiation other than light, as the Rontgen rays, radium rays, ·etc.; ·esp., a picture of opaque objects traversed by the rays; a skiagraph.