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cathodic protection

protection of ferrous metals against electrolysis by the attachment of sacrificial anodes.
Also called electrolytic protection.
Origin of cathodic protection
First recorded in 1930-35 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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British Dictionary definitions for cathodic protection

cathodic protection

(metallurgy) a technique for protecting metal structures, such as steel ships and pipelines, from electrolytic corrosion by making the structure the cathode in a cell, either by applying an electromotive force directly or by putting it into contact with a more electropositive metal See also sacrificial anode
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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