1. radio

noun. (ˈreɪdiːˌoʊ) Medium for communication.
Synonyms
radiocommunication wireless broadcasting
Etymology
radio (English)
radius (Latin)

2. radio-frequency spectrum

noun. The entire spectrum of electromagnetic frequencies used for communications; includes frequencies used for radio and radar and television.
Synonyms
spectrum radio emission radio radiation radio spectrum electromagnetic spectrum radio wave

3. radio-gramophone

noun. Electronic equipment consisting of a combination of a radio receiver and a record player.
Synonyms
radio audio system radio-phonograph radio set wireless receiving set tuner sound system radio receiver electronic equipment

4. radio-phonograph

noun. Electronic equipment consisting of a combination of a radio receiver and a record player.
Synonyms
radio audio system radio set radio-gramophone wireless receiving set tuner sound system radio receiver electronic equipment

5. radio-controlled

adjective. Operated and guided by radio.
Synonyms
guided
Antonyms
unguided

6. radio-opaque

adjective. Not transparent to X-rays or other forms of radiation.
Synonyms
radiopaque
Antonyms
radiolucent

7. radio-controlled aircraft

noun. An aircraft without a pilot that is operated by remote control.
Synonyms
pilotless aircraft drone heavier-than-air craft

8. radio

noun. (ˈreɪdiːˌoʊ) An electronic receiver that detects and demodulates and amplifies transmitted signals.
Synonyms
receiving set detector wireless radio set radio-gramophone superhet crystal set tuner receiver receiving system radio receiver clock radio heterodyne receiver push-button radio amplifier demodulator radio-phonograph superheterodyne receiver
Etymology
radio (English)
radius (Latin)

9. radio

noun. (ˈreɪdiːˌoʊ) A communication system based on broadcasting electromagnetic waves.
Synonyms
wireless radio set radiotelegraphy tuner wireless telegraphy communication system radio transmitter receiving set radiotelegraph wireless telegraph radio receiver
Antonyms
lender excommunicate
Etymology
radio (English)
radius (Latin)

10. radio

verb. (ˈreɪdiːˌoʊ) Transmit messages via radio waves.
Synonyms
intercommunicate communicate
Etymology
radio (English)
radius (Latin)
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