etching• It doesn't have to be artwork like paintings, drawings, etchings, prints or even posters.• There were faintetchings in the gold, but she couldn't make them out.• These turned out to be prints of William Green's soft-ground etchings taken as proofs from the plates in the early 1800's.• And having lost our zeal for the idleetchings of some boredbuckaroo, we slink off into the shade.• Hydrofluoric acid is the etchingagent for silicate-rich rocks; carbonates can be etched with variousweak acids.• When the etchings are taken down inmates will have another kind of picture to put in their place.• Weak etching gives a thin, patchystain.• The ice on the river was smooth and transparent, not crisscrossed with the white etchings of skaters' tracks.