Usually means: Electronic device controlling current flow.
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We found 13 dictionaries that define the word thermionic tube:

General (12 matching dictionaries)
  1. thermionic tube: Merriam-Webster
  2. thermionic tube: Oxford Learner's Dictionaries
  3. thermionic tube: American Heritage Dictionary of the English Language
  4. thermionic tube: Collins English Dictionary
  5. thermionic tube: Vocabulary.com
  6. thermionic tube: The Wordsmyth English Dictionary-Thesaurus
  7. thermionic tube: Infoplease Dictionary
  8. thermionic tube: Dictionary.com
  9. thermionic tube: Rhymezone
  10. thermionic tube: FreeDictionary.org
  11. thermionic tube: Mnemonic Dictionary
  12. thermionic tube: TheFreeDictionary.com

Computing (1 matching dictionary)
  1. thermionic tube: Encyclopedia

(Note: See thermionic_tubes as well.)

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Definitions from WordNet (thermionic tube)

▸ noun:  electronic device consisting of a system of electrodes arranged in an evacuated glass or metal envelope

Phrases:
thermionic vacuum tube, more...

▸ Words similar to thermionic tube

▸ Usage examples for thermionic tube

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▸ Rhymes of thermionic tube

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Similar:
Phrases:
thermionic vacuum tube, more...




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