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Meaning of Crookes tube | Babel Free

Noun CEFR B2

Definitions

An early experimental electrical discharge tube by means of which cathode rays and X-rays were discovered.

CEFR level

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

See also

crookesite crookie Crooking crookneck Crooks Crookshanks

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