PLATINUM

[noun] [U] - an extremely valuable metal that is silvery in colour, does not react easily with other chemicals and is used in jewellery and in industrya platinum wedding ringSince the catalytic converters that clean up car emissions are made from platinum, the price of the precious metal has increased.A platinum blonde is a young woman with hair so pale it is almost white.It's more common to see platinum blondes/women with platinum blonde hair in countries like Sweden.