tungsten

[ tuhng-stuhn ]

nounChemistry.
  1. a rare, metallic element having a bright-gray color, a metallic luster, and a high melting point, 3410° C, and found in wolframite, tungstite, and other minerals: used in alloys of high-speed cutting tools, electric-lamp filaments, etc. Symbol: W; atomic weight: 183.85; atomic number: 74; specific gravity: 19.3.

Origin of tungsten

1
1760–70; <Swedish, equivalent to tung heavy + sten stone

Other words from tungsten

  • tung·sten·ic [tuhng-sten-ik], /tʌŋˈstɛn ɪk/, adjective

Words Nearby tungsten

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use tungsten in a sentence

  • This property may be increased by alloying the steel with tungsten and hardening it before it is magnetized.

    Aviation Engines | Victor Wilfred Pag
  • Magneto field magnets are always made of tungsten steel alloy, so treated that it will retain its magnetism for lengthy periods.

    Aviation Engines | Victor Wilfred Pag
  • The operation of mounting tungsten filaments in small copper wire is very much like threading an exceedingly small needle.

  • More efficient lamps have been devised with filaments of the metals tantalum and tungsten (Fig. 274).

    Physics | Willis Eugene Tower
  • How many candle power should a 20-watt tungsten lamp give if its efficiency is one watt per candle power?

    Physics | Willis Eugene Tower

British Dictionary definitions for tungsten

tungsten

/ (ˈtʌŋstən) /


noun
  1. a hard malleable ductile greyish-white element. It occurs principally in wolframite and scheelite and is used in lamp filaments, electrical contact points, X-ray targets, and, alloyed with steel, in high-speed cutting tools. Symbol: W; atomic no: 74; atomic wt: 183.85; valency: 2–6; relative density: 19.3; melting pt: 3422±20°C; boiling pt: 5555°C: Also called: wolfram

Origin of tungsten

1
C18: from Swedish tung heavy + sten stone

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for tungsten

tungsten

[ tŭngstən ]


W
  1. A hard, gray to white metallic element that is very resistant to corrosion. It has the highest melting point of all elements, and it retains its strength at high temperatures. It is used to make light-bulb filaments and to increase the hardness and strength of steel. Atomic number 74; atomic weight 183.84; melting point 3,410°C; boiling point 5,900°C; specific gravity 19.3 (20°C); valence 2, 3, 4, 5, 6. Also called wolfram See Periodic Table.

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