cathode ray tube Definition in the Cambridge English Dictionary
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Definition of “cathode ray tube” - English Dictionary

Definition of "cathode ray tube" - American English Dictionary

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cathode ray tubenoun [C]

(abbreviation CRT)  /ˈkæθ·oʊd ˌreɪ ˌtub/
physics a tube-shaped ​part in a ​television or ​computerscreen, inside which a ​flow of electrons (= ​smallpieces of an ​atom) is ​produced to ​create the ​images or ​text
(Definition of cathode ray tube from the Cambridge Academic Content Dictionary © Cambridge University Press)

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 ​computerscreen, inside which a ​continuousflow 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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