noun, Electronics, Television.
a device consisting of the cathode ray tube, which emits electrons, and a surrounding electrostatic or electromagnetic apparatus, which controls, focuses, and accelerates the stream of electrons (electron beam)
a heated cathode with an associated system of electrodes and coils for producing and focusing a beam of electrons, used esp in cathode-ray tubes
The part of a cathode-ray tube that emits a narrow beam of electrons, consisting of a cathode, control grids, and usually a heater. Electrons are emitted from the cathode, which is typically heated by electric current to give the electrons escape energy. The electrons are then focused into a beam by the electric fields of the control grids.
noun 1. (def 14). electron hole See hole.
[ih-lek-tron-ik, ee-lek-] /ɪ lɛkˈtrɒn ɪk, ˌi lɛk-/ adjective 1. of or relating to or to devices, circuits, or systems developed through . 2. of or relating to electrons or to an electron. 3. (of a musical instrument) using electric or electronic means to produce or modify the sound. 4. of, relating to, or controlled by […]
[ih-lek-tron-i-kuh, ee-lek-] /ɪ lɛkˈtrɒn ɪ kə, ˌi lɛk-/ noun 1. a cover term for various genres of electronically generated music, usually excluding electronic dance music. 2. electronic devices or technology collectively: Her house, her office, her car—all are loaded with electronica. /ɪlɛkˈtrɒnɪkə; ˌiːlɛk-/ plural noun 1. electronic equipment, systems, music, etc, collectively noun any of […]
- Electronic address
noun the electronic mail designation for a recipient who uses that mail software Usage Note computing