etchant

[ ech-uh nt ]
/ ˈɛtʃ ənt /

noun

a chemical used to etch designs into metal, glass, or other material.

Origin of etchant

First recorded in 1925–30; etch + -ant

British Dictionary definitions for etchant

etchant
/ (ˈɛtʃənt) /

noun

any acid or corrosive used for etching