Definitions for platinumˈplæt n əm, ˈplæt nəm

This page provides all possible meanings and translations of the word platinum

Random House Webster's College Dictionary

plat•i•numˈplæt n əm, ˈplæt nəm(n.)

  1. a heavy, grayish white, highly malleable and ductile metallic chemical element, resistant to most chemicals, practically unoxidizable except in the presence of bases, and fusible only at extremely high temperatures: used for making chemical and scientific apparatus, as a catalyst in the oxidation of ammonia to nitric acid, and in jewelry.

    Category: Chemistry

    Ref: Symbol: Pt; 1

  2. a light, metallic gray with very slight bluish tinge when compared with silver.

  3. (adj.)(of a recording, compact disc, or cassette) having sold a minimum of one million copies.

    Category: Music and Dance

Origin of platinum:

1805–15; < NL, alter. of earlier platina < Sp; see platina

Princeton's WordNet

  1. platinum, Pt, atomic number 78(noun)

    a heavy precious metallic element; grey-white and resistant to corroding; occurs in some nickel and copper ores and is also found native in some deposits

Wiktionary

  1. platinum(Noun)

    The metallic chemical element with atomic number 78 and symbol Pt.

  2. platinum(Adjective)

    Of a whitish grey colour, like that of the metal.

  3. platinum(Adjective)

    Of a musical recording that has sold over one million copies (for singles), or two million (for albums).

  4. Origin: platina, "little silver" (because platinum was found as an apparent impurity with silver)

Webster Dictionary

  1. Platinum(noun)

    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

Freebase

  1. Platinum

    Platinum is a chemical element with the chemical symbol Pt and an atomic number of 78. Its name is derived from the Spanish term platina, which is literally translated into "little silver". It is a dense, malleable, ductile, precious, gray-white transition metal. Platinum has six naturally occurring isotopes. It is one of the rarest elements in the Earth's crust and has an average abundance of approximately 5 μg/kg. It is the least reactive metal. It occurs in some nickel and copper ores along with some native deposits, mostly in South Africa, which accounts for 80% of the world production. As a member of the platinum group of elements, as well as of the group 10 of the periodic table of elements, platinum is generally non-reactive. It exhibits a remarkable resistance to corrosion, even at high temperatures, and as such is considered a noble metal. As a result, platinum is often found chemically uncombined as native platinum. Because it occurs naturally in the alluvial sands of various rivers, it was first used by pre-Columbian South American natives to produce artifacts. It was referenced in European writings as early as 16th century, but it was not until Antonio de Ulloa published a report on a new metal of Colombian origin in 1748 that it became investigated by scientists.

U.S. National Library of Medicine

  1. Platinum

    Platinum. A heavy, soft, whitish metal, resembling tin, atomic number 78, atomic weight 195.09, symbol Pt. (From Dorland, 28th ed) It is used in manufacturing equipment for laboratory and industrial use. It occurs as a black powder (platinum black) and as a spongy substance (spongy platinum) and may have been known in Pliny's time as "alutiae".


Translations for platinum

Kernerman English Multilingual Dictionary

platinum(adjective)

(of) an element, a heavy, valuable grey metal, often used in making jewellery

a platinum ring.

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