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cathode-ray tube
cath·ode-ray tube (plural cath·ode-ray tubes)


noun 
Definition:
 
TV tube: a vacuum tube in which a stream of electrons is produced and directed onto a fluorescent screen, e.g. in a television or visual display unit, creating images and text
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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