To cut into a surface with an acid or other corrosive substance in order to make a pattern. Best known as a technique for creating printing plates, but also used for decoration on metal, and, in modern industry, to make circuit boards.
To engrave a surface.
To make a lasting impression.
The memory of 9/11 is etched into my mind.
To sketch; to delineate.
Cut or dug into the surface as by etching.
(of a muscle, body part or person) Toned and with a well-defined musculature.