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  1. PLATINUM definition: 1. a chemical element that is an extremely valuable silver-coloured metal, used in jewellery and in…. Learn more.

  2. en.wikipedia.org › wiki › PlatinumPlatinum - Wikipedia

    Platinum is a chemical element; it has symbol Pt and atomic number 78. It is a dense, malleable, ductile, highly unreactive, precious, silverish-white transition metal. Its name originates from Spanish platina, a diminutive of plata "little silver". [7] [8] Platinum is a member of the platinum group of elements and group 10 of the periodic ...

  3. The meaning of PLATINUM is a precious grayish-white noncorroding ductile malleable heavy metallic element that fuses with difficulty and is used especially in chemical ware and apparatus, as a catalyst, and in dental and jewelry alloys.

  4. Platinum, chemical element, the best known and most widely used of the six platinum metals. A very heavy, precious, silver-white metal, platinum is soft and ductile and has a high melting point and good resistance to corrosion and chemical attack. Learn more about platinum in this article.

  5. A soft, ductile, malleable, silver-white metallic element that usually occurs with osmium, iridium, palladium, or nickel. It has a high melting point and does not corrode in air. Platinum is used as a catalyst and in making jewelry, electrical contacts, and dental crowns.

  6. noun. /ˈplætɪnəm/. /ˈplætɪnəm/. [uncountable] (symbol Pt) a chemical element. Platinum is a silver-grey precious metal, used in making expensive jewellery and in industry. Topics Physics and chemistry c2, Clothes and Fashion c2. Oxford Collocations Dictionary.

  7. Platinum definition: A silver-white metallic element occurring in alluvial deposits in sperrylite and nickel ores, usually mixed with other metals such as iridium, osmium, or nickel. It is ductile and malleable, does not oxidize in air, and is used as a catalyst and in electrical components, jewelry, dentistry, and electroplating.

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