Definition of digital radio in US English:

digital radio

noun

  • 1A radio for receiving analogue signals which incorporates either a digital tuning mechanism or a digital display (or frequently both). Now rare.

  • 2A radio for receiving digital radio signals.

  • 3Telecommunications. The radio transmission of audio signals that have been digitally encoded, especially for the purposes of broadcasting.

Origin

1970s; earliest use found in Kokomo (Indiana) Tribune. From digital + radio.

Pronunciation

digital radio

/ˌdɪdʒɪtl ˈreɪdɪəʊ/