the GNU version of the Collaborative International Dictionary of English
adj. Containing copper.
The Century Dictionary and Cyclopedia
Producing or containing copper; copper-bearing: as, cupriferous ore, or silver.
Word Usage
"The cupriferous stone struck east-west, with a dip to the south; the outcrops, visible without digging, measured fifteen to twenty metres long, by one to one and a half in breadth."