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Tungsten   /tˈəŋstən/   Listen
noun
Tungsten  n.  
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.), tungstite.






Collaborative International Dictionary of English 0.48








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"Tungsten" Quotes from Famous Books



... in time better and more economical incandescent lamps. From the filaments of bamboo fiber the next step was to filaments of cellulose in the form of cotton, duly prepared and carbonized. Later (1905) came the metalized carbon filament and finally the employment of tantalum or tungsten. The tungsten lamps first made were very delicate, and it was not until W. D. Coolidge, in the research laboratories of the General Electric Company at Schenectady, invented a process for producing ductile tungsten that they became ...
— The Age of Invention - A Chronicle of Mechanical Conquest, Book, 37 in The - Chronicles of America Series • Holland Thompson

... iron ore, copper, tin, gold, silver, uranium, nickel, tungsten, mineral sands, lead, zinc, diamonds, ...
— The 2004 CIA World Factbook • United States. Central Intelligence Agency

... became white hot, which he explained by some mysterious inductive action of the heat vibrations. I don't follow him at all. His theory's probably all wrong, but he delivered the goods. He gave me the right tip, even if I have got him lashed to the mast now. I use a tungsten spiral in a nitrogen atmosphere in my transformer and replace the quartz bulb with a ...
— The Man Who Rocked the Earth • Arthur Train

... silent in the shop. Suddenly the light flashed up brighter than before, and the young inventor caught sight of a man walking around the new aeroplane, examining it carefully. He carried, as Tom could see, a large-sized electric flash-lamp, with a brilliant tungsten filament, ...
— Tom Swift and his Sky Racer - or, The Quickest Flight on Record • Victor Appleton

... being derived from the fine colour (Gr. [Greek: chroma]) of its compounds. It is a member of the sixth group in the periodic classification of the elements, being included in the natural family of elements containing molybdenum, tungsten and uranium. The element is not found in the free state in nature, nor to any large extent in combination, occurring chiefly as chrome-ironstone, Cr2O3.FeO, and occasionally being found as crocoisite, PbCrO4, chrome-ochre, Cr2O3, and chrome-garnet, CaO.Cr2O3.3SiO2, ...
— Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 3 - "Chitral" to "Cincinnati" • Various

... send it to us," Rip replied. "We have heat enough to cook anything, including tungsten alloy." He explained briefly what action they ...
— Rip Foster Rides the Gray Planet • Blake Savage



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