noun
- A ductile malleable reddish-brown corrosion-resistant diamagnetic metallic element; occurs in various minerals but is the only metal that occurs abundantly in large masses; used as an electrical and thermal conductor.
- synonyms: Cu, atomic number 29
- A copper penny.
- Uncomplimentary terms for a policeman.
- A reddish-brown color resembling the color of polished copper.
- synonyms: copper color
- Any of various small butterflies of the family Lycaenidae having coppery wings.
verb
- Coat with a layer of copper. .
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). Copper. Retrieved September 20, 2026, from http://smartdefine.org/copper/definitions/1199029 |
| Chicago | WordNet. 2010. "Copper" http://smartdefine.org/copper/definitions/1199029 (accessed September 20, 2026). |
| Harvard | WordNet 2010, Copper, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/copper/definitions/1199029>. |
| MLA | WordNet. "Copper" 23 October 2010. Web. 20 September 2026. <http://smartdefine.org/copper/definitions/1199029> |