Množina: tombacs

ETYM Portu. tambaca,tambaque, from Malay tambâga copper; cf. Skr. tâmraka; cf. French tombac.
An alloy of copper and zinc (and sometimes arsenic) used to imitate gold in cheap jewelry and for gilding; SYN. tombak, tambac.
Cheap gold-coloured alloy of zinc and copper.
Alloy of zinc and copper used for cheap jewelry, etc.; Dutch gold.