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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



... other rare metals were the subject of casual trial. No real success was attained in that direction, and for many years the carbon-filament lamp reigned supreme. During the last four or five years lamps with filaments made from tantalum and tungsten have been produced and placed on the market with great success, and are now largely used. Their price is still very high, however, as compared with that of the carbon lamp, which has been vastly improved in methods of ...
— Edison, His Life and Inventions • Frank Lewis Dyer and Thomas Commerford Martin
... urging him to get in pursuit of the intruder, Tom had taken from his bureau a powerful, portable, electric flash lamp, of the same variety as that used by the would-be thief. Only Tom's was provided with a tungsten filament, which gave a glaring white pencil of light, increased ...
— Tom Swift and his Giant Cannon - or, The Longest Shots on Record • Victor Appleton
... 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 capsule ...
— The Man Who Rocked the Earth • Arthur Train


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