Meaning of 'etch'

verb

selectively dissolve the surface of (a semiconductor or printed circuit) with a solvent, laser, or stream of electrons

verb

carve or cut a design or letters into

Synonyms: engrave

verb

carve or cut into a block used for printing or print from such a block

Synonyms: engrave

verb

make an etching of

Example: "The engraver etched an image into the surface."

verb

cause to stand out or be clearly defined or visible

Example: "a face etched with pain"