selectively dissolve the surface of (a semiconductor or printed circuit) with a solvent, laser, or stream of electrons
carve or cut a design or letters into; "engrave the pen with the owner's name"
carve or cut into a block used for printing or print from such a block; "engrave a letter"
make an etching of; "He etched her image into the surface"
cause to stand out or be clearly defined or visible; "a face etched with pain"; "the leafless branches etched against the sky"
impossible to stop or prevent.
impervious to pleas, persuasion, requests, reason;
not to be placated or appeased or moved by entreaty; "grim determination"; "grim necessity"; "Russia's final hour, it seemed, approached with inexorable certainty"; "relentless persecution"; "the stern demands of parenthood"