gas tube

American  

noun

1. an electron tube the envelope of which contains a highly rarefied gas.

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Etymology

Origin of gas tube

First recorded in 1805–15

Example Sentences

I then pinch the gas tube to extinguish the flame, allow the gas to pass as before, and so blow a mixture of unburnt air and gas into the fuel.

From Scientific American Supplement, No. 481, March 21, 1885 by Various

To collect the gas, raise the nitrometer off the rubber stopper, and place the gas tube from the decomposition apparatus in the glass dish W and under the opening of the nitrometer.

From Nitro-Explosives: A Practical Treatise by Sanford, P. Gerald (Percy Gerald)

Might be one of those gas-discharge curves, if the gas tube happened to be defective.

From The Romantic Analogue by Skupeldyckle, W.W.

Here was the logical place to set the gas tube, nose pointed ahead.

From The Seed of the Toc-Toc Birds by Weiss, George Henry

A second trip had to be made to bring the gas tube.

From The Seed of the Toc-Toc Birds by Weiss, George Henry