As adjectives the difference between corrosive and etched
is that
corrosive is eating away; having the power of gradually wearing, hanging, or destroying the texture or substance of a body; as the corrosive action of an acid while
etched is cut or dug into the surface as by etching.
As a noun corrosive
is that which has the quality of eating or wearing away gradually.
As a verb etched is
(
etch).