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nounthe use of radio to send telegraphic messages (usually by Morse code)
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nountelegraphy that uses transmission by radio rather than by wire
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- lodge English physicist who studied electromagnetic radiation and was a pioneer of radiotelegraphy (1851-1940)
- sir oliver joseph lodge English physicist who studied electromagnetic radiation and was a pioneer of radiotelegraphy (1851-1940)
- sir oliver lodge English physicist who studied electromagnetic radiation and was a pioneer of radiotelegraphy (1851-1940)