aeruginous
adjEtymology Borrowed from Middle French erugineux, from Latin aerūginōsus (“rusty”).
1
Pertaining to copper rust; in particular, resembling the (bluish-)greenish colour of copper rust.
- There was definitely some aeruginous material on that door handle.
- It is not possible to adequately discuss aeruginous (copper rust) corrosion products without introducing several principles of corrosion and descriptions of minerals.2002, David A. Scott, Copper and Bronze in Art: Corrosion, Colorants, Conservation, Getty Publications, →ISBN, page 11: