RADIOGRAM
radiogram, radiograph, shadowgraph, skiagraph, skiagram
(noun) a photographic image produced on a radiosensitive surface by radiation other than visible light (especially by X-rays or gamma rays)
radiogram
(noun) a message transmitted by wireless telegraphy
Source: WordNet® 3.1
Etymology 1
Noun
radiogram (plural radiograms)
A message, like a telegram, transmitted by radio rather than wires.
Etymology 2
Noun
radiogram (plural radiograms)
An entertainment device that combined a radio and a record player or gramophone.
Etymology 3
Noun
radiogram (plural radiograms)
A radiograph
Source: Wiktionary