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Meaning of Coolidge tube | Babel Free

Noun CEFR B2

Definitions

An improvement on the Crookes tube in which the electrons are produced by thermionic effect from a tungsten filament heated by an electric current.

CEFR level

B2
Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.
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See also

Coolie Coolie Christmas coolie hat coolie orange coolieism Coolies

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