تعريف sacrificial anode في الإنجليزية الإنجليزية القاموس.
A piece of corrodible metal, attached to a metallic surface to be protected, that is preferentially consumed by electrolytic action
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