platinum
n.
precious metal, basic metallic element (Chemistry)
Platinum
This page is about the
chemical element. For other uses, see
Platinum (disambiguation). Platinum (
IPA: ) is a
chemical element in the
periodic table that has the
atomic symbol Pt and an
atomic number of 78. A heavy, malleable, ductile,
precious, grey-white
transition metal, platinum is resistant to corrosion and occurs in some
nickel and
copper ores along with some native deposits. Platinum is used in
jewellery, laboratory equipment,
electrical contacts, dentistry, and
automobile emissions control devices. Platinum
bullion has the
ISO currency code of XPT.
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platinum
Noun
1. a heavy precious metallic element; gray-white and resistant to corroding; occurs in some nickel and copper ores and is also found native in some deposits
(synonym) Pt, atomic number 78
(hypernym) noble metal
Platinum
(n.)
A metallic element, intermediate in value between silver and gold, occurring native or alloyed with other metals, also as the platinum arsenide (sperrylite). It is heavy tin-white metal which is ductile and malleable, but very infusible, and characterized by its resistance to strong chemical reagents. It is used for crucibles, for stills for sulphuric acid, rarely for coin, and in the form of foil and wire for many purposes. Specific gravity 21.5. Atomic weight 194.3. Symbol Pt. Formerly called platina.
Webster's Revised Unabridged Dictionary (1913), edited by Noah Porter.
About
platinum
A metal that is an important component of some anticancer drugs, such as cisplatin and carboplatin.