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cathode–ray tube
noun
Definition of cathode–ray tube
: a vacuum tube in which a beam of electrons is projected on a phosphor-coated screen to produce a luminous spot at a point on the screen determined by the effect on the electron beam of a variable magnetic field within the tube
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First Known Use of cathode–ray tube
1905
CATHODE–RAY TUBE Defined for English Language Learners
cathode-ray tube
noun
Definition of cathode–ray tube for English Language Learners
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: a large tube that shows a picture on a screen (such as a television or computer screen)
Medical Dictionary
cathode–ray tube
noun
Medical Definition of cathode–ray tube
: a vacuum tube in which a beam of electrons is projected on a fluorescent screen to produce a luminous spot
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