radiophone
/ˈreɪdioʊˌfoʊn/
noun
- A device that transmits sound using radio waves instead of wires; an early form of wireless telephone or two-way radio.
- The ship's crew used a radiophone to call for help when the engine failed.
- The museum displayed a vintage radiophone from the 1920s.
- Early radiophones were bulky but allowed people to communicate across long distances.
Synonyms