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Tom"bac (), n.[Pg. tambaca,tambaque, fr. Malay tambga copper; cf. Skr. tmraka; cf. F. tombac.] (Metal.) An alloy of copper and zinc, resembling brass, and containing about 84 per cent of copper; -- called also German, 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.]
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