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单词 iridium
释义
N30548299iridiumSpoken.30Fiction.50Magazine.92Newspaper.105Academic.22

iridium

/aɪˈrɪdɪəm/
noun
mass noun
the chemical element of atomic number 77, a hard, dense silvery-white metal. (Symbol: Ir)
(化学元素)铱(符号:Ir)。
词源
early 19th cent.: modern Latin, from Latin iris, irid- 'rainbow' (so named because it forms compounds of various colours).
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更新时间:2025/1/23 8:24:23