Source : Webster's Revised Unabridged Dictionary (1913)

Radiotelephone \Ra`di*o*tel"e*phone\, n.
   A wireless telephone. -- {Ra`di*o*te*leph"o*ny}, n.

Source : WordNet®

radiotelephone
     n 1: telephony that uses transmission by radio rather than by
          wire [syn: {radiotelephony}, {wireless telephone}]
     2: a telephone that communicates by radio waves rather than
        along cables [syn: {radiophone}, {wireless telephone}]