单词 | quartation |
释义 | quartation/kwɔːˈteɪʃn/Metallurgy noun The addition of silver to a mixture of gold and silver until the proportions are about one to three, at which point it becomes possible to remove all the silver using nitric acid. OriginEarly 17th century; earliest use found in John Woodall (1570–1643), surgeon. From post-classical Latin quartation-, quartatio from classical Latin quartus fourth + -ātiō. |
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