ETCH

I. verb see: eat Date: 1634 transitive verb 1. to produce (as a pattern or design) on a hard material by eating into the material's surface (as by acid or laser beam), to subject to such ~ing, to delineate or impress clearly , intransitive verb to practice ~ing, ~er noun II. noun Date: 1896 the action or effect of ~ing a surface, a chemical agent used in ~ing