platinum
/ˈplætɪnəm/noun
mass noun
1- a precious silvery-white metal, the chemical element of atomic number 78. It was first encountered by the Spanish in South America in the 16th century, and is used in jewellery, electrical contacts, laboratory equipment, and industrial catalysts. (Symbol: Pt)（化学元素）铂, 白金（符号：Pt）。
1.1
- as modifier greyish-white or silvery like platinum银灰色的, 青灰色的：
a platinum wig.
一个银灰色的假发。
短语
go platinum
- (of a recording) achieve sales meriting a platinum disc（录音）达到白金唱片的销量。
词源
early 19th cent.: alteration of earlier platina, from Spanish， diminutive of plata 'silver'.