{ . (Elec.) A form of conductor, designed by Ferranti, for currents of high potential, and consisting of concentric tubes of copper separated by an insulating material composed of paper saturated with black mineral wax. [ Webster 1913 Suppl. ]

. (Elec.) An increase in the ratio of transformation of an alternating current converter, accompanied by other changes in electrical conditions, occurring when the secondary of the converter is connected with a condenser of moderate capacity; -- so called because first observed in connection with the Ferranti cables in London. [ Webster 1913 Suppl. ]