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tombac 頓巴黃銅 頓巴黃銅 tombac n 1: an alloy of copper and zinc (and sometimes arsenic) used to imitate gold in cheap jewelry and for gilding [synonym: {tombac}, {tombak}, {tambac}] Tombac \Tom"bac\, n. [Pg. tambaca,tambaque, fr. Malay tamb[=a]ga
copper; cf. Skr. t[=a]mraka; cf. F. tombac.] (Metal.) An alloy of copper and zinc, resembling brass, and containing about 84 per cent of copper; -- called also {German brass} or {Dutch brass}. It is very malleable and ductile, and when beaten into thin leaves is sometimes called {Dutch metal}. The addition of arsenic makes {white tombac}. [Written also {tombak}, and {tambac}.] [1913 Webster]
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