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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
1922
ELECTRON TUBE Defined for Kids
electron tube
noun
Definition of ELECTRON TUBE for Kids
: 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)
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