1. of, relating to, or containing copper
Usage: technical
2. having the reddish-brown color of copper

Examples

• The cupreous ore was extracted from the mine.
• Her hair had a beautiful cupreous shine in the sunlight.
• The statue developed a cupreous patina over time.
• The geologist identified several cupreous minerals in the sample.
• The artist mixed paints to achieve a cupreous hue.
• Ancient cupreous tools were found at the archaeological site.