Definitions
1.verbTo 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.
2.verbTo engrave a surface.
3.verbTo make a lasting impression."The memory of 9/11 is etched into my mind."
4.verbTo sketch; to delineate.
5.adjectiveCut or dug into the surface as by etching.
6.adjective(of a muscle, body part or person) Toned and with a well-defined musculature.