sacrificial anode(redirected from Sacrificial zinc)
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Related to Sacrificial zinc: Galvanic anode
An anode attached to a metal object, such as a boat or underground tank, to inhibit the object's corrosion. The anode is electrolytically decomposed while the object remains free of damage.
(Metallurgy) metallurgy an electropositive metal, such as zinc, that protects a more important electronegative part by corroding when attacked by electrolytic action