radiotelegraphy
/ˌreɪdioʊtəˈlɛɡrəfi/
noun
- A system of sending messages over long distances using radio waves instead of wires, similar to telegraphy.
- Early ships used radiotelegraphy to communicate with the shore.
- The invention of radiotelegraphy allowed news to travel across oceans in minutes.
- Radiotelegraphy was a major advance in communication before the telephone became common.
Synonyms