noun (n)

• broadcasting visual images of stationary or moving objects(noun.communication)

  Example:
  Television is a medium because it is neither rare nor well done.
  

  Synonym:
  telecasting, tv, video
  

  source: wordnet30
• a telecommunication system that transmits images of objects (stationary or moving) between distant points(noun.artifact)

  Synonym:
  television system
  

  source: wordnet30
• an electronic device that receives television signals and displays them on a screen(noun.artifact)

  Synonym:
  boob tube, goggle box, idiot box, television receiver, television set, telly, tv, tv set
  

  source: wordnet30