Radiotelegraphy
Pronunciation : Ra`di*o*te*leg"ra*phy
Part of Speech : n.
Definition : Defn: Telegraphy using the radiant energy of electrical (Hertzian) waves; wireless telegraphy; -- the term adopted for use by the Radiotelegraphic Convention of 1912.
[Radio- + telegraphy.]
Source : Webster's Unabridged Dictionary, 1913