radiotelegraph

[ rey-dee-oh-tel-uh-graf, -grahf ]
/ ˌreɪ di oʊˈtɛl əˌgræf, -ˌgrɑf /

noun

a telegraph in which messages or signals are sent by means of radio waves rather than through wires or cables.

verb (used with or without object)

to telegraph by radiotelegraphy.

Origin of radiotelegraph

First recorded in 1905–10; radio- + telegraph
Related formsra·di·o·tel·e·graph·ic, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for radiotelegraph

radiotelegraph

/ (ˌreɪdɪəʊˈtɛlɪˌɡrɑːf, -ˌɡræf) /

verb

to send (a message) by radiotelegraphy

noun

a message sent by radiotelegraphy
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