Definition of radio star in English:

radio star

Pronunciation /ˈreɪdɪəʊ ˌstɑː/

noun

  • 1A popular performer on radio broadcasts; a radio celebrity.

  • 2Astronomy
    A discrete source of radio waves outside the solar system (often subsequently identified as a galaxy). Now chiefly historical.

Origin

1920s; earliest use found in Lincoln (Nebraska) State Journal. From radio + star.