electron tube

SEE SYNONYMS FOR electron tube ON THESAURUS.COM

noun

an electronic device that consists, typically, of a sealed glass bulb containing two or more electrodes: used to generate, amplify, and rectify electric oscillations and alternating currents.

Also called electronic tube.

Compare gas tube, vacuum tube.

Origin of electron tube

First recorded in 1920–25

Words nearby electron tube

electron radiography, electron-ray tube, electron spin resonance, electron telescope, electron transport, electron tube, electron volt, electronystagmography, electrooculogram, electro-oculography, electro-optics

Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for electron tube

electron tube

noun

an electrical device, such as a valve, in which a flow of electrons between electrodes takes placeAlso called: vacuum tube Sometimes shortened to: tube

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for electron tube

electron tube

A sealed glass tube containing either a vacuum or a small amount of gas, in which electrons move from a negatively charged electrode, the cathode, to a positively charged one, the anode. The cathode is usually heated by an electric current to free the electrons. Other electrodes in the tube can vary the electric or magnetic fields in the tube to control the strength and direction of the moving electrons. Electron tubes are used to amplify signals, rectify AC currents, and produce x-rays, among other uses. They have been mostly replaced by transistors but are still used in television screens, computer monitors, and microwave technology. Also called valve See also vacuum tube.

单词	electron tube
释义	electron tube SEE SYNONYMS FOR electron tube ON THESAURUS.COM noun an electronic device that consists, typically, of a sealed glass bulb containing two or more electrodes: used to generate, amplify, and rectify electric oscillations and alternating currents. Also called electronic tube. Compare gas tube, vacuum tube. Origin of electron tube First recorded in 1920–25 Words nearby electron tube electron radiography, electron-ray tube, electron spin resonance, electron telescope, electron transport, electron tube, electron volt, electronystagmography, electrooculogram, electro-oculography, electro-optics Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for electron tube electron tube noun an electrical device, such as a valve, in which a flow of electrons between electrodes takes placeAlso called: vacuum tube Sometimes shortened to: tube Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Words related to electron tube thermionic tube Scientific definitions for electron tube electron tube A sealed glass tube containing either a vacuum or a small amount of gas, in which electrons move from a negatively charged electrode, the cathode, to a positively charged one, the anode. The cathode is usually heated by an electric current to free the electrons. Other electrodes in the tube can vary the electric or magnetic fields in the tube to control the strength and direction of the moving electrons. Electron tubes are used to amplify signals, rectify AC currents, and produce x-rays, among other uses. They have been mostly replaced by transistors but are still used in television screens, computer monitors, and microwave technology. Also called valve See also vacuum tube. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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electron tube

noun

Origin of electron tube

Words nearby electron tube

British Dictionary definitions for electron tube

noun

Words related to electron tube

Scientific definitions for electron tube