- a telephone in which sound or speech is transmitted by means of radio waves instead of through wires or cables.
verb (used with or without object), ra·di·o·tel·e·phoned, ra·di·o·tel·e·phon·ing.
- to telephone by radiotelephony.
- Also called: radiophone, wireless telephone a device for communication by means of radio waves rather than by transmitting along wires or cables
- to telephone (a person) by radiotelephone