無線電報
Radiotelegraph \Ra`di*o*tel"e*graph\, n. [Radio- + telegraph.] A wireless telegraph.
radiotelegraph
n 1: telegraphy that uses transmission by radio rather than by
wire [syn: {radiotelegraphy}, {wireless telegraphy}]
2: the use of radio to send telegraphic messages (usually by
Morse code) [syn: {radiotelegraphy}, {wireless telegraph},
{wireless telegraphy}]