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| ra·di·o [ ráydee ] |
noun (plural ra·di·os) |
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| Definition: |
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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
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2. communication using radio waves: communication that takes place by means of radio waves
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3. device receiving sound broadcasts: an electronic device for receiving sound broadcasts transmitted via radio signals
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4. two-way communication device: an electronic device used to send and receive radio signals, used for two-way communication
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5. radio broadcasts: sound broadcasts transmitted by means of radio waves
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6. broadcasting of programs by radio: the broadcasting by radio of programs for the public
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7. sound broadcasting: radio broadcasting as an industry or profession
  She works in radio.
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transitive and intransitive verb (past and past participle ra·di·oed, present participle ra·di·o·ing, 3rd person present singular ra·di·os) |
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| Definition: |
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contact somebody by radio: to communicate by radio or send somebody a message by radio
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adjective |
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| Definition: |
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physics of electromagnetic waves: relating to electromagnetic waves or electromagnetic phenomena with frequencies between 10 kHz and 300,000 MHz
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| [Early 20th century. Shortening of radiotelegraph] |
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