Dictionary  elec'tron tube"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. Cf. gas tube, vacuum tube. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
See also:
|
Atlas
Encyclopedia
Dictionary
Thesaurus
Day in History
