n. [ F.; cf. OF. ferrant iron-gray, from L. ferrum iron. ] A stuff made of silk and wool. [ 1913 Webster ]
I did buy a colored silk ferrandine. Pepys. [ 1913 Webster ]
. (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. ]