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单词 zaffer
释义
zaf·fer also zaf·fre (zăfər)
n.
An impure oxide of cobalt, used to produce a blue color in enamel and in the making of smalt.

[Italian zaffera, from Old French safre, perhaps alteration of safir, sapphire; see SAPPHIRE, or from Arabic ufr, yellow copper, brass, from 'afar, yellow; see pr2 in the Appendix of Semitic roots.]
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更新时间:2025/1/8 14:11:48