单词 | platinum |
释义 | platinum/ˈplatɪnəm![]() noun [mass noun] 1A 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) Fuel cells contain expensive precious metals like platinum and palladium, they have not been proven to work in extreme weather conditions and the nation's gas stations would need to be reconfigured....
1.1 [often as modifier] Greyish white or silvery like platinum: a platinum wig...
Phrasesgo platinum OriginEarly 19th century: alteration of earlier platina, from Spanish, diminutive of plata 'silver'. |
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