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| copper (cuprum) | |||
| copper A chemical element; one of the most important nonferrous metals; a ductile and malleable metal found in various ores and used in industry, engineering, and the arts in both pure and alloyed form | |||
| ram: 9 phrases in 3 subjects |
| Chemistry | 7 |
| Energy industry | 1 |
| Microsoft | 1 |