[ rey-dee-oh-tuh-leg-ruh-fee ]
/ ˌreɪ di oʊ təˈlɛg rə fi /


the constructing or operating of radiotelegraphs.

Origin of radiotelegraphy

First recorded in 1895–1900; radio- + telegraphy Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for radiotelegraphy

  • Used for all visual and sound signaling, radiotelegraphy, and on cables using siphon recorders, used in communicating with Navy.

  • Connected with this office is, since 1906, the International Office for Radiotelegraphy.

  • Most thunderstorm recorders register, by radiotelegraphy, the strays set up by lightning discharges.

    Meteorology|Charles Fitzhugh Talman

British Dictionary definitions for radiotelegraphy


/ (ˌreɪdɪəʊtɪˈlɛɡrəfɪ) /


a type of telegraphy in which messages (usually in Morse code) are transmitted by radio waves; its use is no longer widespread as it has been superseded by satellite technologyAlso called: wireless telegraphy
Derived Formsradiotelegraphic (ˌreɪdɪəʊˌtɛlɪˈɡræfɪk), adjectiveradiotelegraphically, adverb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012