Bible Dictionaries
Ferranti Mains
Webster's Dictionary
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.
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Bibliography Information
Webster, Noah. Entry for 'Ferranti Mains'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​f/ferranti-mains.html. 1828.