- radiogram - a message transmitted by wireless telegraphy
--1 is a kind of message
- radiogram, radiograph, shadowgraph, skiagraph, skiagram - a photographic image produced on a radiosensitive surface by radiation other than visible light (especially by X-rays or gamma rays)
--2 is a kind of photograph, photo, exposure, pic
--2 has particulars:autoradiograph; roentgenogram, X ray, X-ray picture, X-ray photograph - radiogram, radiograph, shadowgraph, skiagraph, skiagram - a photographic image produced on a radiosensitive surface by radiation other than visible light (especially by X-rays or gamma rays)