chemigraphy
/ˌkɛˈmɪɡrəfi/Printing. Now historical
noun
A method of relief printing in which chemicals are used to etch a metal plate on which a drawing has been made, or (in later use) on to which a photograph has been transferred.
- Zinc was the metal most commonly used..
Origin
Mid 19th century; earliest use found in The Times. From chemi- + -graphy, probably after German Chemigraphie.