What is the meaning of Radiogram?

Synonym of radiograph (an image, often a photographic negative, produced by radiation other than ordinary light; especially an X-ray photograph)

Synonym of radiotelegram (a message, like a telegram, transmitted by wireless telegraphy (telegraphy by radio rather than by transmission cables))

Synonym of radiogramophone (a gramophone record player that incorporates a radio receiver)

radiogram

radiogram, radiograph

radiogram, radiotelegram

Source: wiktionary.org