3 definitions found
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
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.
From WordNet r 1.6 [wn]:
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}]
From Elements database 20001107 [elements]:
tungsten
Symbol: W
Atomic number: 74
Atomic weight: 183.85
White or grey metallic transition element, formerly called {wolfram}.
Forms a protective oxide in air and can be oxidized at high temperature.
First isolated by Jose and Fausto de Elhuyer in 1783.
more about tungsten
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