单词 | osmiridium |
释义 | osmiridium/ˌɒzmɪˈrɪdɪəm/noun A naturally occurring alloy of osmium and iridium, often with traces of other metals; (Mineralogy ) an alloy having a cubic crystal structure and in which iridium predominates. OriginMid 19th century; earliest use found in James Dana (1813–1895), geologist, zoologist, and teacher. From German Osmiridium (C. F. Naumann Lehrbuch der Mineralogie 545; earlier as Osm-iridium), shortened from Osmium-iridium from Osmium + Iridium. |
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