2. Noun. (context: color) The color of copper after extended exposure to the atmosphere. ¹
3. Noun. A pigment, formerly used in oil painting, obtained by exposing copper plates to vinegar (acetic acid). ¹
¹ Source: wiktionary.com
2. Noun. (context: color) The color of copper after extended exposure to the atmosphere. ¹
3. Noun. A pigment, formerly used in oil painting, obtained by exposing copper plates to vinegar (acetic acid). ¹
¹ Source: wiktionary.com