One of the mysteries of the English language finally explained.
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.
1920s; earliest use found in Lincoln (Nebraska) State Journal. From radio + star.
radio star/ˈreɪdɪəʊ ˌstɑː/
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