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Từ điển WordNet v3.1 - WordNet Dictionary
thermionic vacuum tube
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 • Hyponyms: acorn tube, diode, rectifying tube, rectifying valve, electron multiplier, gas-discharge tube, klystron, magnetron, pentode, television-camera tube, television pickup tube, tetrode, triode, X-ray tube • Part Holonyms: circuit, electrical circuit, electric circuit • Part Meronyms: anode, cathode, electrode, grid, control grid, plate
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