Cathode-ray Tube Definition

kăthōd-rā
noun
A vacuum tube in which a stream of electrons is electromagnetically focused on a fluorescent screen, producing lighted dots: such tubes are used as oscilloscopes and picture tubes: abbrev. CRT.
Webster's New World
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Other Word Forms of Cathode-ray Tube

Noun

Singular:
cathode-ray tube
Plural:
cathode ray tubes

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