glow lamp

American  

noun

Electronics.

1. a vacuum tube containing a gas that is ionized by the electrons, giving a visible glow.

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glow lamp British  

noun

1. 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

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Etymology

Origin of glow lamp

First recorded in 1880–85

Example Sentences

I shall speak only of the electric glow lamp, as I have had some experience in connection with this.

From Project Gutenberg

I entered the studio and shut the door behind me; but to my astonishment, I perceived Mr. Cavanagh, seated in a deep saddle-bag chair beneath an immense arc glow lamp, fast asleep.

From Project Gutenberg

The filament of a glow lamp, on the other hand, is most likely to meet the eye, but a frosted bulb is an extremely simple and common way of entirely getting over that difficulty.

From Project Gutenberg

His electrokey had a special circuit that lighted up a tiny glow lamp in the key handle if the lock had been tampered with.

From Project Gutenberg

Dropping his unconscious burden, the detective came up to where Mark was bending over the victim and pulled a little electric glow lamp from his pocket.

From Project Gutenberg