Ra″di‐o‐phone (rā″dĭ‐ō̍‐fōn), n. [Radio- + Gr. φωνή sound.] (Physics) An apparatus for the production of sound by the action of luminous or thermal rays. It is essentially the same as the photophone.
Content
Rights and sources
Review source, license and attribution information for this content.
Content
Webster's Dictionary 1913
Webster's Revised Unabridged Dictionary, C. & G. Merriam Co., 1913.