Ra′di‐o‐te‐leg″ra‐phy (?), n. [Radio- + telegraphy.] Telegraphy using the radiant energy of electrical (Hertzian) waves; wireless telegraphy; — the term adopted for use by the Radiotelegraphic Convention of 1912.
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Webster's Dictionary 1913
Webster's Revised Unabridged Dictionary, C. & G. Merriam Co., 1913.