cathode-ray tube

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Definitions from WordNet

Noun cathode-ray tube has 1 sense

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

Definitions from the Web

Cathode Ray Tube

A cathode ray tube (CRT) is a vacuum tube that contains one or more electron guns and a fluorescent screen used to display images. It is a technology that was widely used in older television sets and computer monitors.

1. Noun: A device used for displaying images

Sample Sentence: The cathode ray tube in the old television produced a flickering image.

2. Noun: A vacuum tube with an electron gun and a fluorescent screen

Sample Sentence: The cathode ray tube in the oscilloscope displayed the electrical waveforms.

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