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We found 30 dictionaries with English definitions that include the word vacuum tube: Click on the first link on a line below to go directly to a page where "vacuum tube" is defined. General (18 matching dictionaries) vacuum tube: American Heritage Dictionary of the English Language [home, info] vacuum tube: Collins English Dictionary [home, info] vacuum tube: Vocabulary.com [home, info] vacuum tube: Merriam-Webster's Online Dictionary, 11th Edition [home, info] vacuum-tube, vacuum tube: Wordnik [home, info] vacuum tube: Wiktionary [home, info] vacuum tube: Compact Oxford English Dictionary [home, info] vacuum tube: The Wordsmyth English Dictionary-Thesaurus [home, info] vacuum tube: Infoplease Dictionary [home, info] vacuum tube: Dictionary.com [home, info] Vacuum Tube, Vacuum-tube, Vacuum tube (electronics): Wikipedia, the Free Encyclopedia [home, info] vacuum tube: Rhymezone [home, info] Vacuum Tube: 1911 edition of the Encyclopedia Britannica [home, info] vacuum tube: Free Dictionary [home, info] vacuum tube: Mnemonic Dictionary [home, info] vacuum tube: WordNet 1.7 Vocabulary Helper [home, info] vacuum tube: LookWAYup Translating Dictionary/Thesaurus [home, info] vacuum tube: Dictionary/thesaurus [home, info] Business (1 matching dictionary) vacuum tube: Legal dictionary [home, info] Computing (4 matching dictionaries) vacuum tube: Free On-line Dictionary of Computing [home, info] vacuum tube: CCI Computer [home, info] vacuum tube: Computer Telephony & Electronics Dictionary and Glossary [home, info] Vacuum-tube, Vacuum tube (electronics), vacuum tube: Encyclopedia [home, info] Medicine (2 matching dictionaries) vacuum tube: online medical dictionary [home, info] vacuum tube: Medical dictionary [home, info] Science (1 matching dictionary) Vacuum Tube: Eric Weisstein's World of Physics [home, info] Tech (4 matching dictionaries) vacuum tube: Electronics [home, info] vacuum tube: Rane Professional Audio Reference [home, info] VACUUM TUBE: Space and Electronic Warfare Lexicon [home, info] Vacuum Tube: Sweetwater Music [home, info]

Quick definitions from WordNet (vacuum tube) ▸ noun:  electronic device consisting of a system of electrodes arranged in an evacuated glass or metal envelope