HomeServicesBlogDictionariesContactSpanish Course
← Back to search

Meaning of electron tube | Babel Free

Noun CEFR B2

Definitions

Any of several electronic devices that control electron current through vacuum, gas or vapor between electrodes within a sealed container, usually of glass or metal and often designed to be easily installed in and removed from the equipment in which it is used.

Equivalents

CEFR level

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

See also

Learn this word in context

See electron tube used in real conversations inside our free language course.

Start Free Course