Definition of etching

The noun etching has 3 senses? (no senses from tagged texts)

(an impression made from an etched plate)

(an etched plate made with the use of acid)

(making engraved or etched plates and printing designs from them)

The verb etch has 5 senses? (first 1 from tagged texts)

(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")

(carve or cut into a block used for printing or print from such a block; "engrave a letter")

(carve or cut a design or letters into; "engrave the pen with the owner's name")

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