thermionic tube

noun

Synonym of vacuum tube.

Similar
vacuum tubetubethermionic vacuum tubeelectron tubethermionic valve
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Meanings

nounthermionic tube (plural thermionic tubes)

plural thermionic tubes

  1. UKSynonym of vacuum tube.

    Synonyms: vacuum tube

Synonyms & antonyms

nounSynonym of vacuum tube.

Similar
vacuum tube

More synonyms by meaning

nounelectronic device consisting of a system of electrodes arranged in an evacuated glass or metal envelope

Similar
tubevacuum tubethermionic vacuum tubeelectron tubethermionic valve
Broader
electronic device
Also see
electron tubethermionic valvetubevacuum tube

Synonym sets from Open English WordNet, CC BY 4.0.

Cite this entry
APA

thermionic tube. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/thermionic%20tube

MLA

“thermionic tube.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/thermionic%20tube. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “thermionic tube,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/thermionic%20tube.

Source: thermionic tube on Wiktionary, CC BY-SA 4.0.