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单词 clarkeite
释义

clarkeite

noun

clarke·​ite
ˈklärˌkīt
plural -s
: a rare dark brown radioactive mineral whose chief constituent is uranium oxide (specific gravity 6.39)

Word History

Etymology

Frank W. Clarke †1931 American chemist + English -ite

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更新时间:2024/12/23 5:03:16