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English noun: pyrolusite | |||
| 1. | pyrolusite (substance) a mineral consisting of manganese dioxide; an important source of manganese | ||
| Broader (hypernym) | mineral | ||
| Substance holonym | atomic number 25, manganese, Mn | ||
Based on WordNet 3.0 copyright © Princeton University.
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Web design: Orcapia v/Per Bang. English edition: .
2026 onlineordbog.dk