verdigris
Pronunciation:
/ˈvɝ.də.ɡɹis/noun
Definitions
A blue-green patina or rust that forms on copper-containing metals.
Copper acetate.
The colour of this patina or material.
verb
Definitions
To cover, or coat, with verdigris.
Example: An old verdigrised brass bugle. — Hawthorne.