etching

/ˈetʃ.ɪŋ/

IPA: /EH1 CH IH0 NG/

verb
  1. 1

    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.

  2. 2

    To engrave a surface.

  3. 3

    To make a lasting impression.

    The memory of 9/11 is etched into my mind.

  4. 4

    To sketch; to delineate.

noun
  1. 1

    The art of producing an image from a metal plate into which an image or text has been etched with acid.

  2. 2

    The image created by this process.

Source: https://en.wiktionary.org/wiki/etch, https://en.wiktionary.org/wiki/etching