cathode ray

cathode ray


  1. a flow of electrons emanating from a cathode in a vacuum tube and focused into a narrow beam.


  1. A stream of electrons emitted by the cathode in electrical discharge tubes.
  2. One of the electrons that is emitted in a stream from a cathode-ray tube.

  1. A beam of electrons streaming from the negatively charged end of a vacuum tube (the cathode) toward a positively charged plate (the anode).

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