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radio

ra·di·o [ ráydee  ]


noun  (plural ra·di·os)
Definition:
 
1. use of electromagnetic waves for communication: the use of electromagnetic waves to transmit and receive information, as in sound broadcasts or two-way communication, without the need for connecting wires

2. communication using radio waves: communication that takes place by means of radio waves

3. device receiving sound broadcasts: an electronic device for receiving sound broadcasts transmitted via radio signals

4. two-way communication device: an electronic device used to send and receive radio signals, used for two-way communication

5. radio broadcasts: sound broadcasts transmitted by means of radio waves

6. broadcasting of programs by radio: the broadcasting by radio of programs for the public

7. sound broadcasting: radio broadcasting as an industry or profession
She works in radio.



transitive and intransitive verb  (past and past participle ra·di·oed, present participle ra·di·o·ing, 3rd person present singular ra·di·os)
Definition:
 
contact somebody by radio: to communicate by radio or send somebody a message by radio



adjective 
Definition:
 
physics of electromagnetic waves: relating to electromagnetic waves or electromagnetic phenomena with frequencies between 10 kHz and 300,000 MHz

[Early 20th century. Shortening of radiotelegraph]
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