English Explanatory Dictionary

vacuum tube

English dictionary entry

Meanings

noun
  1. A type of electron tube that controls electron current through vacuum 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.

Pronunciation

LL-Q1860 (eng)-Vealhurl-vacuum tube.wav

Word forms

vacuum tube vacuum tubes

Synonyms

valve electron tube

Derived words

cathode-ray tube photomultiplier tube television tube travelling-wave tube
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