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cathode-ray tube

Noun cathode-ray tube has 1 sense
  1. cathode-ray tube, CRT - a vacuum tube in which a hot cathode emits a beam of electrons that pass through a high voltage anode and are focused or deflected before hitting a phosphorescent screen
    --1 is a kind of gas-discharge tube
    --1 is a part of
     oscilloscope, scope, cathode-ray oscilloscope, CRO; television, television system; computer, computing machine, computing device, data processor, electronic computer, information processing system
    --1 has parts: electron gun; screen, CRT screen
    --1 has particulars: Crookes tube; kinescope, picture tube, television tube
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