Synonyms|21Antonyms|0|Broader|1Narrower|14Related|16
3
thermionic vacuum tube
3
tube
3
vacuum tube(noun, device)
2
thermionic tube
1
thermionic valve
0
diode
0
klystron
0
magnetron
0
metro
0
pentode
0
pipe
0
subway
0
subways
0
triode
0
tubing
0
underground
0
undergrounded
0
undergrounding
0
undergrounds
0
valve
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APASmart Define. (2013). electron tube thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/electron_tube/thesaurus/synonyms
ChicagoSmart Define. 2013. "electron tube thesaurus" https://smartdefine.org/electron_tube/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2013, electron tube thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/electron_tube/thesaurus/synonyms>.
MLASmart Define. "electron tube thesaurus" 19 May 2013. Web. 20 September 2026. <https://smartdefine.org/electron_tube/thesaurus/synonyms>