- an electron tube the envelope of which contains a highly rarefied gas.
Origin of gas tube
First recorded in 1805–15
Also called discharge tube.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for gas tube
To supplement their scanty stock of rifles, they made some hand-guns of gas-tube.The Inhabitants of the Philippines
Frederic H. Sawyer