platinum

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plat·i·num / ˈplatn-əm/ • n. 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 jewelry, electrical contacts, laboratory equipment, and industrial catalysts. (Symbol: Pt) ∎  the grayish-white or silvery color of platinum.• adj. 1. of a platinum color: a platinum wig.2. (of a recording) having sold enough copies to merit a platinum disk.PHRASES: go platinum (of a recording) achieve sales meriting a platinum disk.

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