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| ore A mineral or mineral aggregate, more or less mixed with gangue, that can be worked and treated at a profit | |||
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| ores | |||
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| brown | |||
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ruda : 32 a las frases, 10 temas |
| Agricultura | 2 |
| Ambiente | 1 |
| Anticuado | 2 |
| Ciencias de la vida | 4 |
| Ciencias naturales | 1 |
| Derecho laboral | 2 |
| Economía | 6 |
| Industria de alimentos | 11 |
| Medicina | 2 |
| Silvicultura | 1 |