etched

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.