Definitions for Platinum
ˈplæt n əm, ˈplæt nəmPlat·inum

Princeton's WordNet(0.00 / 0 votes)Rate this definition:

1. platinum, Pt, atomic number 78noun

   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

GCIDE(4.00 / 1 vote)Rate this definition:

1. Platinumnoun

   A metallic element of atomic number 78, one of the noble metals, classed with silver and gold as a precious metal, occurring native or alloyed with other metals and also as the platinum arsenide (sperrylite). It is a heavy tin-white metal which is ductile and malleable, but very infusible (melting point 1772

Wiktionary(3.00 / 1 vote)Rate this definition:

1. platinumnoun

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

2. platinumadjective

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

3. platinumadjective

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

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

Webster Dictionary(0.00 / 0 votes)Rate this definition:

1. Platinumnoun

   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

2. Etymology: [NL., fr. Sp. platina, from plata silver, LL. plata a thin plate of metal. See Plate, and cf. Platina.]

Freebase(1.00 / 1 vote)Rate this definition:

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.

Chambers 20th Century Dictionary(5.00 / 1 vote)Rate this definition:

1. Platinum

   plat′in-um, n. an important metal of a dim silvery appearance, between gold and silver in value, and very difficult to melt—older name Plat′ina.—adjs. Platin′ic; Platinif′erous.—v.t. Plat′inise, to coat with platinum.—ns. Plat′inoid, one of the metals with which platinum is always found associated—palladium iridium, &c.; Plat′inotype, a method of producing photographs by means of paper coated with a preparation of platinum: a picture so produced.—adj. Plat′inous, containing or consisting of platinum. [Sp. platina—plata, plate.]

U.S. National Library of Medicine(0.00 / 0 votes)Rate this definition:

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".

Editors Contribution(0.00 / 0 votes)Rate this definition:

1. platinum

   A type of color on a color chart.

   Platinum silver is a silver white color, where as platinum hair dye is a white color on the color chart.

   
   

   Submitted by MaryC on July 30, 2016  

2. ---

   platinum

   Is an element and form of metal.

   Platinum occurs naturally in the sands of various rivers and has many purposes.

   
   

   Submitted by MaryC on November 20, 2015  

Suggested Resources(0.00 / 0 votes)Rate this definition:

1. platinum

   The platinum symbol -- In this Symbols.com article you will learn about the meaning of the platinum symbol and its characteristic.

2. platinum

   Song lyrics by platinum -- Explore a large variety of song lyrics performed by platinum on the Lyrics.com website.

Matched Categories

1. • Noble Metal

How to pronounce Platinum?

1. Alex

   US English

   David

   US English

   Mark

   US English

   Daniel

   British

   Libby

   British

   Mia

   British

   Karen

   Australian

   Hayley

   Australian

   Natasha

   Australian

   Veena

   Indian

   Priya

   Indian

   Neerja

   Indian

   Zira

   US English

   Oliver

   British

   Wendy

   British

   Fred

   US English

   Tessa

   South African

How to say Platinum in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of Platinum in Chaldean Numerology is: 5

2. Pythagorean Numerology

   The numerical value of Platinum in Pythagorean Numerology is: 7

Examples of Platinum in a Sentence

1. Prince George:

   You pledged to serve your whole life, you continue to deliver. That is why Platinum JubileeDrones are here. That is what Platinum JubileeDrones celebrate tonight.

2. Barclays Africa analyst Peter Worthington:

   For example, at current prices over half of South Africa's platinum production is unprofitable. This will likely weigh on mineral exports, eroding some of the benefit from lower oil prices.

3. David Hart:

   They (fuel cell makers) all have a pathway of using less platinum, which is fairly clear.

4. Stuart Murray:

   Whether they can survive is going to depend on platinum prices and on whether they can fix themselves for a new reality of lower margins, they have to hold discussions with the government and with the unions to try to save what was a national treasure which is now a shambles.

5. The Queen:

   I have been humbled and deeply touched that so many people have taken to the streets to celebrate my Platinum Jubilee, while I may not have attended every event in person, my heart has been with you all ; and I remain committed to serving you to the best of my ability, supported by my family.

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