ˈrādēəˌfōn noun
Etymology: radio- + -phone
1. : an apparatus (as the photophone) for the production of sound by the action of radiant energy
2.
a. : a transmitting set for radiotelephony
b. : a receiving set for radiotelephony
ˈrādēəˌfōn noun
Etymology: radio- + -phone
1. : an apparatus (as the photophone) for the production of sound by the action of radiant energy
2.
a. : a transmitting set for radiotelephony
b. : a receiving set for radiotelephony
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012