Synonyms|19Antonyms|0|Broader|1Narrower|14Related|14

5 entries under noun topic. ×

3
thermionic vacuum tube
3
tube
3
vacuum tube
2
electron tube
1
thermionic valve
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APASmart Define. (2013). thermionic tube thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/thermionic_tube/thesaurus/synonyms
ChicagoSmart Define. 2013. "thermionic tube thesaurus" https://smartdefine.org/thermionic_tube/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2013, thermionic tube thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/thermionic_tube/thesaurus/synonyms>.
MLASmart Define. "thermionic tube thesaurus" 19 May 2013. Web. 30 September 2026. <https://smartdefine.org/thermionic_tube/thesaurus/synonyms>