cathodic protection

noun

1. protection of ferrous metals against electrolysis by the attachment of sacrificial anodes.

cathodic protection

noun

1. See sacrificial anode
   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

Word History and Origins

Origin of cathodic protection¹

First recorded in 1930–35