Of a whitish grey colour, like that of the metal. / Of a musical recording that has sold over one million copies (for singles), or two million (for albums). / Very expensive, or of very high quality

(computer games) to reach platinum level in a game

Of a silvery blond color. / (of a person) Having platinum blond hair.

A silvery blond colour. / A person with this hair color.

(intransitive) (of an LP or CD) To sell some specified number of copies (currently 1 million in the US) and be awarded a platinum record.

In chemistry, a group of elements with related properties similar to that of platinum, notably high resistance to chemical activity, particularly oxidation and reaction with acids. The platinum group consists of the elements ruthenium, rhodium, palladium, osmium, iridium, and platinum. In the periodic table of the elements they are in period 5 or 6 and in groups 8, 9 or 10.

(chemistry, obsolete) platinum.

The process of applying a protective layer of tin, especially to steel sheet.

present participle of tin-plate

(chemistry) An opaque white mineral, PtAs₂.