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单词 osmiridium
释义

WordReference Random House Unabridged Dictionary of American English © 2024
os•mi•rid•i•um  (oz′mə ridē əm),USA pronunciation n. [Chem.]
  1. Chemistry, Metallurgyiridosmine.
  • German; see osmium, iridium
  • 1875–80

Collins Concise English Dictionary © HarperCollins Publishers::
osmiridium /ˌɒzmɪˈrɪdɪəm/ n
  1. a very hard corrosion-resistant white or grey natural alloy of osmium and iridium in variable proportions, often containing smaller amounts of platinum, ruthenium, and rhodium: used esp in pen nibs
Etymology: 19th Century: from osm( ium) + iridium
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