An alloy of gold and copper commonly used in pre-Columbian South and Central America.‘There is evidence suggesting the transfer of tumbaga took place, and at a later date possibly brass technology.’
- ‘Many of the coppery-colored tumbaga castings were then gilded and burnished to restore their golden appearance.’
- ‘Many Spanish conquerors were fooled by depletion gilded tumbaga, believing it to be gold.’
- ‘To the eye, tumbaga plates would have had the appearance of pure gold.’
- ‘On heating tumbaga in air, a layer of copper oxide forms on the surface of the object.’
- ‘Because it is an alloy of gold and copper, tumbaga is lighter than gold.’
Mid 19th century from Spanish, from Malay tembaga ‘copper, brass’.
Are You Learning English? Here Are Our Top English Tips