cathoderay tube

Cultural Dictionary
cathode-ray tube (CRT)

A device that can produce an image on a screen with electrical impulses.

Note: The standard television screen is a sophisticated CRT, as are some of the screens on which computer output is displayed. Increasingly, flat-panel displays are replacing CRTs.
The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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