Definitions
American Heritage® Dictionary of the English Language, Fourth Edition
- n. A silver-white metallic element occurring worldwide, 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 1,772°C; boiling point 3,827°C; specific gravity 21.45; valence 2, 3, 4. See Table at element.
- n. A medium to light gray.
Century Dictionary and Cyclopedia
- n. Chemical symbol, Pt; atomic weight, 194.9. An important metal, introduced into Europe about the middle of the eighteenth century from South America. It does not occur as an ore, but alloyed with other metals, especially with rhodium, osmium, iridium, and palladium, all of which, together with iron, copper, and gold, are almost always present in it in small quantity in what is called its native state. Platinum is surpassed in ductility only by gold and silver, and in malleability only by those metals and copper. It is easily rolled into sheets or drawn into wire. Its specific gravity is 21.5, which is higher than that of any other known substance except osmium and iridium. It. is not oxidized in the air at any temperature, and is not attacked by any of the simple acids. It is infusible in the strongest heat of a blast-furnace, but can be melted in the flame of the oxyhydrogen blowpipe or by means of the electric current. It is a rare metal, and the regions which supply it are few. Most of the platinum of commerce conies from the Urals, South America, and Borneo. It is used chiefly in chemical manufacture and analysis, where its resistance to heat and acids is of special value, and in electrical work. It was used for coinage in Russia from 1823 to 1845.
Wiktionary
- adj. Of a whitish grey colour, like that of the metal.
- adj. Of a musical recording that has sold over one million copies (for singles), or two million (for albums).
- n. The metallic chemical element with atomic number 78 and symbol Pt.
- n. A whitish grey colour, like that of the metal.
- n. music A single or album that has achieved platinum sales, i.e. over 1 million or 2 million.
GNU Webster's 1913
- n. (Chem.) 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° C), and characterized by its resistance to strong chemical reagents. It is used for crucibles in laboratory operations, as a catalyst, in jewelry, 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 195.1. Symbol Pt. Formerly called
platina .
WordNet 3.0
- n. 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
Etymologies
- Spanish platina ("little silver"), because platinum was found as an apparent impurity with silver. (Wiktionary)
- New Latin, from Spanish platina, platinum; see platina. (American Heritage® Dictionary of the English Language, Fourth Edition)
Examples
“They used the term platinum in one of his legs following an assassination attempt.”
“Get the most popular stories and breaking news directly in your Twitter feed Bros of the World, Rejoice: Bud Platinum Packs Extra 1% of Alcohol The word platinum connotes luxury, influence, perks, the lifestyle of a jetsetter.”
“We want to reserve it for what we call our platinum providers, and so its reserved for the best that are out there, so that we can deliver that high quality service.”
“But also it just comes down to the efficiency in our sales process and selling more individuals what we call our platinum package of our workshops versus the single package.”
“The export of lunar aluminum could could be used to manufacture lightsails that could give us access to asteroid resources that are high in platinum content”
“Also platinum is needed for fuel cells which can be a component of future energy systems.”
Buzz is at it Again: Let's just change everything - NASA Watch
“It also come in platinum, white gold and yellow gold.”
“You'll also need station attendants, and pay for the real estate (that's a lot of real estate for 10-15 cars), plus maintenance, plus replacing the anodes and cathodes regularly (platinum is pricey), plus profit, etc.”
“A simple search will show that the cost of platinum is a major driver in the entire hydrogen food chain.”
“Each coin, minted in 99.95 percent pure platinum, is encapsulated in plastic and mounted in a satin-lined velvet presentation case.”
2008 American Eagle Platinum Uncirculated Coins Now Available : Coin Collecting News
Lists
These user-created lists contain the word ‘platinum’.
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SCIE - EU nomenclature
All the scientific words found in the official EU nomenclature. For the screening I used Vocabgrabber of the Visual Thesaurus.
abdominal, absorbent, accelerator, accumulator, acebutolol, acetamide, acetanilide, acetate, acetic acid, acetone, acetous, acetyl and 1171 more...
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TECH - metals and alloys
toughness, furnace, vibration, bronze, modulus, tubing, flow, zinc, melting, porta, embrittle, wetting and 262 more...
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IMCO - EU nomenclature
includes words of the "Prodcom list"
abaca, abdominal, abrasive, absorbent, absorber, accelerator, accessory, account book, accumulator, acebutolol, acetaldehyde, acetamide and 4515 more...
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Uncommon Colours
azure, myrtle, periwinkle, viridian, jade, emerald, lime, chartreuse, asparagus, celadon, harlequin, olive and 147 more...
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Dungeons and Dragons
Would you like to join our party? We just started a new campaign.
For more general lists about role-playing games, see brandelion's RPG and lampbane's Tales of the Dread Gazebo.dungeons and dragons, d&d, elf, orc, halfling, drow, giant, troll, kobold, rpg, d20, human and 100 more...
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TECH - web application frameworks
limit, pack, automatic, HTTP, database, poi, event, coverage, core, hibernate, function, product and 310 more...
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Realia from Everywhere
Culturally defined terms and expressions from the four corners of the world
fjord, mistral steppe, tornado, tsunami, polder, kiwi, koala, sequoia, Abominable Snowman, paprika, spaghetti, empanada and 299 more...
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Chemical Elements
A list of chemical elements
hydrogen, helium, lithium, beryllium, boron, carbon, nitrogen, oxygen, fluorine, neon, sodium, magnesium and 106 more...
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Metals
words describing various metals
argent, aluminum, titanium, iron, copper, steel, mercury, bronze, gold, silver, platinum, lead and 6 more...
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Words For Novel
viridity, effigy, paragon, congested, acrid, lilting, clandestine, plethora, accolade, sardonic, naïve, reckoning and 285 more...
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edwardvielmetti's Words
wordhord, wordhoard, wordy, wordie, wiki, toriokyo, superpatron, vacuum, crazy, crazybusy, a2b3, 48104 and 220 more...
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Colors
Words for colors, including things so associated with a color that they can be used in reference to a color.
red, orange, yellow, green, blue, indigo, violet, purple, navy, lavender, turquoise, chartreuse and 218 more...
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Writing
immunity, reaching, ingenuity, divinity, affinity, kaleidoscopes, statistics, hope, pictures, linguistics, magenta, mist and 222 more...
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color me mauve
color words
albescent, ecru, eggshell, mauve, taupe, ochre, ashen, goldenrod, gamboge, cream, saffron, mustard and 109 more...
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nighthawks at the diner
being words from Tom Waits songs.
vinyl, cigarette, rhinestone, naugahyde, margarine, vermouth, gin, platinum, wurlitzer, menthol, oldsmobile, asphalt and 90 more...
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alchemicality
alchemical, alchemy, alchemist, hermetic, hermeticism, philosopher's stone, splendor solis, oxygen, hydrogen, nitrogen, carbon, sulphur and 258 more...
Tweets
Looking for tweets for platinum.

oroboros Pt. Dec 15, 2007