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单词 iridium
释义

i·rid·i·um

noun
/ɪˈrɪdiəm/
/ɪˈrɪdiəm/
[uncountable]
(symbol Ir)
  1. a chemical element. Iridium is a very hard yellow-white metal, used especially in making alloys.
    Word Originearly 19th cent.: modern Latin, from Latin iris, irid- ‘rainbow’ (it has this name because it forms compounds of various colours).
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更新时间:2025/8/7 14:48:28