etch >> /ɛtʃ/
Definition: [transitive verb] Engrave (metal, glass, or stone) by coating it with a protective layer, drawing on it with a needle, and then covering it with acid to attack the parts the needle has exposed, especially in order to produce prints from it.
Example: aquatint is a process of achieving tone by etching a metal plate
Definition: [transitive verb] (of an acid or other solvent) corrode or eat away the surface of (something)
Example: tiny droplets in the glaze emulsion were etched away by acid
Definition: [transitive verb] Cut or carve (a text or design) on a surface.
Example: her initials were etched on the table
Definition: [noun] The action or process of etching something.
Example: semiconductor production processes such as plasma etch