radiogram

1. (telegraphy, historical) Synonym of radiotelegram (“a message, like a telegram, transmitted by wireless telegraphy (“telegraphy by radio rather than by transmission cables”)”).Examples: "Sec. 7. That a person, company, or corporation within the jurisdiction of the United States shall not knowingly utter or transmit, or cause to be uttered or transmitted, any false or fraudulent distress signal or call or false or fraudulent signal, call, or other radiogram of any kind."; "If the War Department at that time had considered it necessary to alert the Hawaiian Department against air and ground attack, it undoubtedly would have so directed instead of sending a long radiogram outlining the various steps that should be taken in connection with sabotage and subversive activities."; "On 3 June, 1898, Lord Kelvin visited [Guglielmo] Marconi's Alum Bay station, on the Isle of Wight, and sent from there the first paid radiograms."Synonyms: radiotelegramhistorical