platinum


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Plat·i·num

 (plăt′n-əm)
n.
A trademark for a certification indicating that a recording, such as an album of music, has sold a million copies.

plat·i·num

 (plăt′n-əm)
n.
1. Symbol Pt 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. Atomic number 78; atomic weight 195.08; melting point 1,768.2°C; boiling point 3,825°C; specific gravity 21.45 (20°C); valence 2, 3, 4. See Periodic Table.
2. A medium to light gray.

[New Latin, from Spanish platina, platinum; see platina.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

platinum

(ˈplætɪnəm)
n
1. (Elements & Compounds) a ductile malleable silvery-white metallic element, very resistant to heat and chemicals. It occurs free and in association with other platinum metals, esp in osmiridium: used in jewellery, laboratory apparatus, electrical contacts, dentistry, electroplating, and as a catalyst. Symbol: Pt; atomic no: 78; atomic wt: 195.08; valency: 1–4; relative density: 21.45; melting pt: 1769°C; boiling pt: 3827±100°C
2. (Colours)
a. a medium to light grey colour
b. (as adjective): a platinum carpet.
[C19: New Latin, from platina, on the model of other metals with the suffix -um]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

plat•i•num

(ˈplæt 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. Symbol: Pt; at. wt.: 195.09; at. no.: 78; sp. gr.: 21.5 at 20°C.
2. a light, metallic gray with very slight bluish tinge when compared with silver.
adj.
3. (of a recording, compact disc, or cassette) having sold a minimum of one million copies.
[1805–15; < New Latin, alter. of earlier platina < Sp; see platina]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

plat·i·num

(plăt′n-əm)
Symbol Pt A soft, easily shaped, silver-white metallic element that occurs worldwide with similar metals. 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. Atomic number 78. See Periodic Table.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.platinum - a heavy precious metallic elementplatinum - 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
noble metal - any metal that is resistant to corrosion or oxidation
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Translations
بِلاتيـنبْلاتين، ذَهَب أبْيَض
платина
platinaplatinový
platin
plaatina
platina
platina
platina
platína
プラチナ
백금
platinum
platina
platīns
platinaplatinový
platina
platina
ทองคำขาว
платина
bạch kim

platinum

[ˈplætɪnəm]
A. Nplatino m
B. CPD platinum blonde N (= colour) → rubio m platino; (= woman) → rubia f platino
platinum blond(e) hairpelo m rubio platino
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005

platinum

[ˈplætɪnəm]
nplatine m
adj [ring, bracelet] → en platineplatinum blonde nblonde f platineplatinum disc n (= award) → disque m de platine
Collins English/French Electronic Resource. © HarperCollins Publishers 2005

platinum

nPlatin nt; a platinum blondeeine Platinblonde
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007

platinum

[ˈplætɪnəm] nplatino
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995

platinum

(ˈplӕtinəm) noun, adjective
(of) an element, a heavy, valuable grey metal, often used in making jewellery. a platinum ring.
Kernerman English Multilingual Dictionary © 2006-2013 K Dictionaries Ltd.

platinum

بِلاتيـن platina platin Platin πλατίνα platino platina platine platina platino プラチナ 백금 platina platina platyna platina платина platina ทองคำขาว platin bạch kim 白金
Multilingual Translator © HarperCollins Publishers 2009

plat·i·num

n. platino.
English-Spanish Medical Dictionary © Farlex 2012

platinum

n platino
English-Spanish/Spanish-English Medical Dictionary Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.
References in classic literature ?
"On the upper part of this tank is a platinum tube provided with a stopcock.
"The spherical cap of the small cone is of platinum, so as not to melt by the action of the cylinder and blow-pipe, for the latter are placed upon the bottom of the iron tank in the midst of the helicoidal spiral, and the extremity of their flame will slightly touch the cap in question.
The leather of his harness was completely hidden beneath ornaments of platinum thickly set with brilliant diamonds, as were the scabbards of his swords and the ornate holster that held his long, Martian pistol.
"You fight in platinum and diamonds?" asked Tara, indicating his gorgeous trappings with a quizzical smile.
We were greeted with an endless round of applause and showered with ornaments of gold, platinum, silver, and precious jewels.
Crutches, wooden legs, artificial arms, steel hooks, caoutchouc jaws, silver craniums, platinum noses, were all to be found in the collection; and it was calculated by the great statistician Pitcairn that throughout the Gun Club there was not quite one arm between four persons and two legs between six.
It was a platinum fob chain simple and chaste in design, properly proclaiming its value by substance alone and not by meretricious ornamentation--as all good things should do.
After about ten minutes a knock came to the door, and the servant entered, carrying a large mahogany chest of chemicals, with a long coil of steel and platinum wire and two rather curiously shaped iron clamps.
Many harnesses were so encrusted with gold, platinum, silver and precious stones as to entirely hide the leather beneath.
Of platinum, too, which is more expensive than gold, it uses one thousand pounds a year in the making of telephone transmitters.
The new venture, Lion, has entered into an agreement with Florida International University to further advance a research programme that uses platinum and palladium to unlock the potential of Lithium Air and Lithium Sulfur battery chemistries to increase their discharge capacities and cyclability.
Rare and precious, platinum jewellery is truly a perennial red-carpet favourite.