thermionic tube

noun
electronic device consisting of a system of electrodes arranged in an evacuated glass or metal envelope
Hypernyms: ↑electronic device
Hyponyms:
Part Holonyms: ↑circuit, ↑electrical circuit, ↑electric circuit
Part Meronyms: ↑anode, ↑cathode, ↑electrode, ↑grid, ↑control grid, ↑plate

Useful english dictionary. 2012.

Look at other dictionaries:

  • thermionic tube — n. an electron tube having a cathode electrically heated in order to cause electron or ion emission: Also [Brit., etc.] Brit. thermionic valve …   English World dictionary

  • thermionic tube — Electronics. a vacuum tube in which the cathode is heated electrically to cause the emission of electrons by thermal agitation. Also called hot cathode tube. [1925 30] * * * …   Universalium

  • thermionic valve — noun electronic device consisting of a system of electrodes arranged in an evacuated glass or metal envelope • Syn: ↑tube, ↑vacuum tube, ↑thermionic vacuum tube, ↑thermionic tube, ↑electron tube • Hypernyms: ↑electronic device …   Useful english dictionary

  • thermionic vacuum tube — noun electronic device consisting of a system of electrodes arranged in an evacuated glass or metal envelope • Syn: ↑tube, ↑vacuum tube, ↑thermionic tube, ↑electron tube, ↑thermionic valve • Hypernyms: ↑electronic device …   Useful english dictionary

  • tube — I (New American Roget s College Thesaurus) n. pipe, hose, conduit; tunnel, subway; slang, television. See passage. II (Roget s IV) n. 1. [A hollow cylinder] Syn. conduit, hose, test tube, tubing, tunnel, loom, subway; see also pipe 1 . 2. [A… …   English dictionary for students

  • thermionic valve — (US thermionic tube) noun Electronics a vacuum tube giving a flow of thermionic electrons in one direction, used especially in the rectification of a current and in radio reception …   English new terms dictionary

  • Tube electronique — Tube électronique Un tube électronique (vacuum tube en américain ou thermionic valve en anglais), également appelé tube à vide ou même lampe, est un composant électronique actif, généralement utilisé comme amplificateur de signal. Le tube à vide… …   Wikipédia en Français

  • Tube à vide — Tube électronique Un tube électronique (vacuum tube en américain ou thermionic valve en anglais), également appelé tube à vide ou même lampe, est un composant électronique actif, généralement utilisé comme amplificateur de signal. Le tube à vide… …   Wikipédia en Français

  • tube — ► NOUN 1) a long, hollow cylinder for conveying or holding liquids or gases. 2) a flexible metal or plastic container sealed at one end and having a cap at the other. 3) a hollow cylindrical organ or structure in an animal or plant. 4) Brit.… …   English terms dictionary

  • thermionic converter — thermionic converter, an electronic device that changes heat directly into electricity. It consists of two metallic electrodes held in a tube at different temperatures and separated by a gas at low pressure. When the electrons on the surface of… …   Useful english dictionary

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