radiotelegraphy

名词 radiotelegraphy:

1. telegraphy that uses transmission by radio rather than by wire
   同义词：radiotelegraph, wireless telegraphy
2. the use of radio to send telegraphic messages (usually by Morse code)
   同义词：radiotelegraph, wireless telegraph, wireless telegraphy

ra.di.o.te.leg.ra.phy

n.（名词）
Telegraphy in which messages are transmitted by radio instead of wire.
无线电报：不借助导线而用无线电传送信息的电报