| 单词 | obsidian |
| 释义 | obsidian /euhb sid"ee euhn/, n. a volcanic glass similar in composition to granite, usually dark but transparent in thin pieces, and having a good conchoidal fracture. [1350-1400; < L Obsidianus, printer's error for Obsianus pertaining to Obsius, the discoverer (according to Pliny) of a similar mineral in Ethiopia; r. ME obsianus < L; see -AN] |
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