单词 | pyrolusite |
释义 | py·ro·lu·site (pī′rō-lsīt) n. A soft, black to dark gray mineral, MnO2, the commonest and most important secondary ore of manganese. [German Pyrolusit : Greek puro-, pyro- + Greek lousis, a washing (from louein, to wash; see leu(ə)- in the Appendix of Indo-European roots).] |
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