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Meaning of cathode ray tube | Babel Free

Noun CEFR C1

Definitions

A vacuum tube that displays still or moving images (such as for a television), by controlling the direction of a cathode ray emitted towards the front of the tube. The front is coated by a layer of fluorescent material, so that it emits light when struck by the beam.

Equivalents

CEFR level

C1
Advanced
This word is part of the CEFR C1 vocabulary — advanced level.

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