Electronics. a technique for varying the sector covered by a transmitting or receiving antenna by electrical means without moving the antenna.
Also called electronic scanning. Television. the technique used in scanning a surface to reproduce or transmit a picture.
noun 1. . electrical storm A thunderstorm.
noun 1. a radio broadcast from a phonograph record. 2. the phonograph record itself.
noun 1. (def 2). electric arc An electric current, often strong, brief, and luminous, in which electrons jump across a gap. Electric arcs across specially designed electrodes can produce very high heats and bright light, and are used for such purposes as welding and illumination in spotlights. Unwanted arcs in electrical circuits can cause fires. […]
- Electric-arc furnace
noun 1. another name for arc furnace