Radio (noun) Definition, Meaning & Examples

noun, plural ra·di·os.
  1. wireless telegraphy or telephony: speeches broadcast by radio.
  2. an apparatus for receiving or transmitting radio broadcasts.
  3. a message transmitted by radio.
adjective
  1. pertaining to, used in, or sent by radio.
  2. pertaining to or employing radiations, as of electrical energy.
verb (used with object), ra·di·oed, ra·di·o·ing.
  1. to transmit (a message, music, etc.) by radio.
  2. to send a message to (a person) by radio.
verb (used without object), ra·di·oed, ra·di·o·ing.
  1. to transmit a message, music, etc., by radio.
  1. a combining form with the meanings “dealing with radiant energy” (radiometer), “employing or dealing with radio waves” (radioacoustics; radiolocation; radiotelephone), “emitting rays as a result of the breakup of atomic nuclei” (radioactive; radiocarbon), “characterized by, employing or dealing with such rays” (radiography; radiopaque; radiotherapy).
noun plural -os
  1. the use of electromagnetic waves, lying in the radio-frequency range, for broadcasting, two-way communications, etc
  2. an electronic device designed to receive, demodulate, and amplify radio signals from sound broadcasting stations, etc
  3. a similar device permitting both transmission and reception of radio signals for two-way communications
  4. the broadcasting, content, etc, of sound radio programmes
    • the occupation or profession concerned with any aspect of the broadcasting of sound radio programmes
    • relating to, produced for, or transmitted by sound radio
  5. short for radiotelegraph, radiotelegraphy, radiotelephone
  6. (modifier)
    • of, relating to, employed in, or sent by radio signals
    • of, concerned with, using, or operated by radio frequencies
  7. (of a motor vehicle) equipped with a radio for communication
verb -os, -oing or -oed
  1. to transmit (a message) to (a person, radio station, etc) by means of radio waves
combining form
  1. denoting radio, broadcasting, or radio frequency
  2. indicating radioactivity or radiation
  3. indicating a radioactive isotope or substance
Noun
    Adjective
      Radio (noun) Definition, Meaning & Examples

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