radio-telegram
/ˌreɪdɪəʊˈtɛləɡram
/noun chiefly historical
A telegram sent by radio.Hand your message in at any Telegraph Office, where full particulars concerning radio-telegrams can be obtained....
- The charge for such radio-telegrams is 10½d. per word.
- On the Atlantic crossing, I was able to exchange radiotelegrams with my mother, whose ship was steaming toward England at the same time.