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Noun: radio  'rey-dee,ow
  1. Medium for communication
    - radiocommunication, wireless
     
  2. An electronic receiver that detects and demodulates and amplifies transmitted signals
    - radio receiver, receiving set, radio set, tuner, wireless
     
  3. A communication system based on broadcasting electromagnetic waves
    - wireless
Verb: radio  'rey-dee,ow
  1. Transmit messages via radio waves
    "he radioed for help"
Adjective: radio  'rey-dee,ow
  1. Indicating radiation or radioactivity

Derived forms: radios, radioes, radioed, radioing

Type of: broadcasting, communicate, communication system, intercommunicate, receiver, receiving system

Part of: radio-gramophone, radio-phonograph

Encyclopedia: Radio, Radio