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  • Definition
    • radio : The technology that allows for the transmission of sound or other signals by modulation of electromagnetic waves.

      • radio : A device that can capture (receive) the signal sent over radio waves and render the modulated signal as sound.

        • radio : Any audio playing device, such as the on-board entertainment system in a car, usually including a radio receiver as well as the capability to play audio from recorded media; see also car radio.

          • radio : A device that can transmit radio signals.

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          • Derivative