- a vacuum tube containing a gas that is ionized by the electrons, giving a visible glow.
Origin of glow lamp
First recorded in 1880–85
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for glow lamp
The glow-lamp, as it is called, is so familiar to us that we ought to know something of its antecedents.The Romance of Modern Invention
The incandescent light, or the glow-lamp as it is called in England, is in general use for lighting dwelling houses.American Inventions and Inventors
William A. Mowry
I must now go from this to the next branch, the glow-lamp, the lamp that is burning so steadily and so nicely above us.
Whichever way it is taken, you will find there is direct action between the sun and the glow-lamp.
- a small light consisting of two or more electrodes in an inert gas, such as neon, at low pressure, across which an electrical discharge occurs when the voltage applied to the electrodes exceeds the ionization potential
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