glow tube

noun

Definition of glow tube

: a gas-discharge tube (as of the cold-cathode type) that gives light due to electric discharge through a rarefied gas

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Cite this Entry

“Glow tube.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/glow%20tube. Accessed 30 Jun. 2022.

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