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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

  • : 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

Learn More about cathode-ray tube

  1. Britannica.com: Encyclopedia article about cathode-ray tube

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