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Longman Dictionary of Contemporary English
tungsten
noun
COLLOCATIONS FROM CORPUS
■ NOUN
lamp
▪ The illumination source was either a single tungsten lamp or this plus a conventional warm white striplight as appropriate.
▪ The illumination consisted of one 500W Mercury lamp vertically overhead, and a tungsten lamp at an angle of about 45°.
EXAMPLES FROM CORPUS
▪ Another type of light bulb you may come across is the tungsten halogen bulb.
▪ As they ran over the pulleys, a slurry of sand or tungsten carbide was poured on the wire.
▪ Its mountains contained gold, silver, copper, iron, and tungsten.
▪ Specialty metals such as stainless steel, silicon electric steel, alloys and tungsten still are produced in the area.
▪ The illumination consisted of a total of 150W of tungsten lighting.
▪ The intensity of the tungsten blue complex is proportional to the concentration of uric acid in the specimen. 205.
▪ The other metal used for anti-tank rounds is tungsten, which is also very hard and dense.
▪ These are simple combinations of metals like chromium, tungsten, iron or nickel, with carbon monoxide.
The Collaborative International Dictionary
Tungsten

Tungsten \Tung"sten\, n. [Sw. tungsten (cf. Dan. tungsteen, G. tungstein); tung heavy (akin to Dan. tung, Icel. [thorn]ungr) + sten stone. See Stone.]

  1. (Chem.) A rare element of the chromium group found in certain minerals, as wolfram and scheelite, and isolated as a heavy steel-gray metal which is very hard and infusible. It has both acid and basic properties. When alloyed in small quantities with steel, it greatly increases its hardness. Symbol W (Wolframium). Atomic weight, 183.6. Specific gravity, 18.

  2. (Min.) Scheelite, or calcium tungstate. [Obs.]

    Tungsten ocher, or Tungstic ocher (Min.), tungstate.

Douglas Harper's Etymology Dictionary
tungsten

rare metallic element, 1796, from Swedish tungsten "calcium tungstate," coined 1780 by its discoverer, Swedish chemist Karl Wilhelm Scheele (1742-1786) from tung "heavy" + sten "stone" (see stone (n.)). The word was used earlier as the name for calcium tungstate (1770). Atomic symbol W is from Latin wolframium, from German Wolfram "iron tungstate" (see wolfram).

Wiktionary
tungsten

n. 1 A metallic chemical element (''symbol'' W) with an atomic number of 74. The symbol is derived from the Latin word ''wolframium''. 2 A light bulb containing tungsten. 3 (context mineralogy English) scheelite, or calcium tungstate

WordNet
tungsten

n. a heavy gray-white metallic element; the pure form is used mainly in electrical applications; it is found in several ores including wolframite and scheelite [syn: wolfram, W, atomic number 74]

Wikipedia
Tungsten

Tungsten, also known as wolfram, is a chemical element with symbol W and atomic number 74. The word tungsten comes from the Swedish language tung sten, which directly translates to heavy stone. Its name in Swedish is volfram, however, in order to distinguish it from scheelite, which is alternatively named tungsten in Swedish.

A hard, rare metal under standard conditions when uncombined, tungsten is found naturally on Earth almost exclusively in chemical compounds. It was identified as a new element in 1781, and first isolated as a metal in 1783. Its important ores include wolframite and scheelite. The free element is remarkable for its robustness, especially the fact that it has the highest melting point of all the elements. Its high density is 19.3 times that of water, comparable to that of uranium and gold, and much higher (about 1.7 times) than that of lead. Polycrystalline tungsten is an intrinsically brittle and hard material, making it difficult to work. However, pure single-crystalline tungsten is more ductile, and can be cut with a hard-steel hacksaw.

Tungsten's many alloys have numerous applications, including incandescent light bulb filaments, X-ray tubes (as both the filament and target), electrodes in TIG welding, superalloys, and radiation shielding. Tungsten's hardness and high density give it military applications in penetrating projectiles. Tungsten compounds are also often used as industrial catalysts.

Tungsten is the only metal from the third transition series that is known to occur in biomolecules, where it is used in a few species of bacteria and archaea. It is the heaviest element known to be essential to any living organism. Tungsten interferes with molybdenum and copper metabolism and is somewhat toxic to animal life.

Tungsten (film)

Tungsten is a 2011 Greek drama film directed by Giorgos Georgopoulos.

Tungsten (music)

A Tungsten or Tungs-Tone is a type of phonograph stylus. Constructed from tungsten wire, held in a metal shank, a tungsten stylus differs from a steel stylus in that it has a cylindrical rather than a conical shape, meaning that the cross-section of the stylus remains the same as the stylus wears down improving durability to several plays.

Typically, a new steel needle is required for every record played on an old acoustic phonograph. This is because the record contains abrasive material. In the first few silent tracks this abrasion hones the steel needle to a profile that tracks the grooves properly. The needle continues to wear as it plays the record, so that by the end its diameter has increased to the point where the sharp edges may damage the grooves on subsequent plays.

One famous brand of tungsten stylus was the Tungs-Tone stylus, manufactured by the Victor Talking Machine Company in the 1910s and 1920s.

Tungsten (disambiguation)

Tungsten may refer to:

  • Tungsten, the chemical element
  • Tungsten (music), a type of phonograph pickup stylus
  • Tungsten (film), 2011 Greek film
  • Tungsten, Colorado, a ghost town
  • Tungsten, Northwest Territories, a Canadian townsite
  • Tungsten (Cantung) Airport, a Canadian private airport
  • Palm Tungsten, Palm Inc.'s product line of personal digital assistants
  • Operation Tungsten, WWII UK Royal Navy operation to sink the German battleship Tirpitz
  • Tungsten, a character from the novel Blart: The Boy Who Didn't Want to Save the World
  • Tungsten, a setting for color temperature on digital cameras
  • Tungsten (js), a modular framework built by Wayfair Engineering for creating web UIs with high-performance rendering on both server and client

Usage examples of "tungsten".

Modern stainless steels may also contain nickel, manganese, niobium, tungsten and titanium, none of which the Grantvillers will be producing any time soon.

Experiments on Plumbago -- Method of Preparing a New Green Colour -- Of the Decomposition of Neutral Salts by Unslaked Lime and Iron -- On the Quantity of Pure Air which is Daily Present in our Atmosphere -- On Milk and its Acid -- On the Acid of Saccharum Lactis -- On the Constituent Parts of Lapis Ponderosus or Tungsten -- Experiments and Observations on Ether -- Index.

Aluminum was added to an oxide of another, less reactive metal, such as chromium, manganese, vanadium, tungsten, or molybdenum.

Copper, Silver, Gold, Zinc and Cadmium, Mercury, Tin, Lead, Bismuth, Antimony, Chromium, Molybdenum, Tungsten, Uranium, Manganese, Iron, Nickel, and Cobalt, the Platinum Group.

Make a tungsten trioxide film on an electrode, stick it in an acidic solution, and apply a negative potential to it.

The sliver was a crystallite unscrambler, the active portion of the gadget consisting of a particular pattern of tiny crystals of tungsten embedded in an aluminum matrix.

Just the thing to go with that glytex suit with the see-through lubricant ducts and tungsten bearings.

Widest lens-opening this afternoon, extra tungsten light laid on, this rainiest day in recent memory, rocket explosions far away to south and east now and then visiting the maisonette, rattling not the streaming windows but only the doors, in slow three- and fourfold shudderings, like poor spirits, desperate for company, asking to be let in, only a moment, a touch .

Sample contains small amts manganese, carbon, sulfur, phosphorus, and silicon, some nickel, zirconium, and tungsten with admixture chromium, molybdenum, and vanadium.

At ten miles from Chah Bahar, McLanahan and Jamieson launched the next two missiles--these were AGM-88 HARMs (High-speed Anti-Radiation Missiles), supersonic radar seekers loaded with a 150-pound conventional high-explosive warhead with tungsten alloy steel cubes embedded in the explosive to triple the warhead's destructive power.

A very small, controlled fusion reaction cooked up deep inside the belly of the missile for just over two microseconds, enough to superheat its two hundred tungsten slugs and spit them out of their containment cells with enough kinetic energy in each to destroy a heavily armored fighting vehicle.

The mysterious substitution of a strange element for tungsten or osmium in various laboratories, the tests indicating that its atomic number was that of plutonium but its atomic weight was far too low, the absurd but necessary theory that the stuff was a gift from some parallel universe and--finally--the fact that the new element, stable when it first arrived, rapidly began to undergo radioactive decay in a startlingly accelerative way.

And suspended there at the end of the first pipe lengths she could see the drill head itself, teeth of tungsten and diamond gleaming in the lights of the heliostats.

He'd pushed a block of tungsten carbide into the loop as a friction brake.

The location of the power units was plainly visible and easily recognized, for at each point there came together four or five great beams, welded into one great mass of tough metal, and in it there were set heavy tungsten bolts that would hold the units in place.