cathode ray tube Definition in British English Dictionary
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Definition of "cathode ray tube" - British English Dictionary

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cathode ray tubenoun [C]

uk   us   (abbreviation CRT) specialized
a tube-shaped part in a television or computer screen, inside which a continuous flow of electrons is produced to create the images or text
(Definition of cathode ray tube from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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