Definition of platina in US English:

platina

noun

historical
  • Platinum.

adjective

historical
  • Made of platinum, consisting of platinum.

noun

historical
  • An alloy of copper and zinc formerly used for making buttons.

Origin

Mid 18th century; earliest use found in Philosophical Transactions of the Royal Society of London. From Spanish † platina platinum (A. de Ulloa Relación historica del viage a la America meridional; now platino, with change of gender after French platine: see platinum) from plata silver + -ina<br>late 18th century; earliest use found in William Richardson (1743–1814), literary scholar. Origin uncertain; probably a transferred use of platina.