Tungsten
['tʌŋst(ə)n] or ['tʌŋstən]
Definition
(noun.) a heavy grey-white metallic element; the pure form is used mainly in electrical applications; it is found in several ores including wolframite and scheelite.
Edited by Hattie--From WordNet
Definition
(n.) 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.
(n.) Scheelite, or calcium tungstate.
Inputed by Elliot
Definition
n. a rare metal chiefly derived from wolfram which is a tungstate of iron and manganese and likewise found in scheelite which is a tungstate of lime.—n. Tung′state a salt of tungstic acid.—adjs. Tungsten′ic; Tungstenif′erous; Tung′stic.—n. Tung′stite native oxide of tungsten.
Editor: Zeke
Examples
- From another caveat, filed in 1889, we extract the following, which shows that he realized the value of tungsten also for this purpose. Frank Lewis Dyer. Edison, His Life and Inventions.
- 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. Frank Lewis Dyer. Edison, His Life and Inventions.
- Thus we have nickel, chromium, and tungsten steel. William Henry Doolittle. Inventions in the Century.
Typist: Pearl