- cathode-raytube
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cath·ode-ray tube (kăthʹōd-rā')
Precision Graphics
n. Abbr. CRT
A vacuum tube in which a hot cathode emits electrons that are accelerated as a beam through a relatively high voltage anode, further focused or deflected electrostatically or electromagnetically, and allowed to fall on a phosphorescent screen.
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Universalium. 2010.