To Make Designs in Metal or Glass by Using Acid
This page is the CodyCross answer for the clue below from Inventions, Group 56, Puzzle 5.
Question is: To Make Designs in Metal or Glass by Using Acid
and the answer is: ETCHING
Word Meaning:
ETCHING — (uncountable) The art of producing an image from a metal plate into which an image or text has been etched with acid.
Definitions from Wiktionary.