Definition of radio- combining form from the Oxford Advanced Learner's Dictionary

     

    radio-

     combining form
    combining form
    BrE BrE//ˈreɪdiəʊ//
     
    ; NAmE NAmE//ˈreɪdi//
     
    (in nouns, adjectives and adverbs) Radio broadcasting
     
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  1. 1connected with radio waves or broadcasting radio-controlled See related entries: Radio broadcasting
  2. 2connected with radioactivity radiotherapy
  3. Word Originfrom radio or radius.
See the Oxford Advanced American Dictionary entry: radio-