electron tube

noun

Definition of electron tube

: an electronic device in which conduction by electrons takes place through a vacuum or a gaseous medium within a sealed glass or metal container and which has various uses based on the controlled flow of electrons

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First Known Use of electron tube

1919

in the meaning defined above

See Words from the same year

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ELECTRON TUBE Defined for Kids

electron tube

noun

Definition of electron tube for Students

: a device in which conduction of electricity by electrons takes place through a vacuum or a gas within a sealed container and which has various uses (as in radio and television)