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From Longman Dictionary of Contemporary English
Related topics: Elements
tungstentung‧sten /ˈtʌŋstən/ noun [uncountable]  HCMa hard metal that is used to make steel and in the thin wires in electric light bulbs. It is a chemical element: symbol W
Examples from the Corpus
tungstenSpecialty metals such as stainless steel, silicon electric steel, alloys and tungsten still are produced in the area.Its mountains contained gold, silver, copper, iron, and tungsten.These are simple combinations of metals like chromium, tungsten, iron or nickel, with carbon monoxide.The other metal used for anti-tank rounds is tungsten, which is also very hard and dense.The illumination consisted of a total of 150W of tungsten lighting.As they ran over the pulleys, a slurry of sand or tungsten carbide was poured on the wire.Another type of light bulb you may come across is the tungsten halogen bulb.The intensity of the tungsten blue complex is proportional to the concentration of uric acid in the specimen. 205.
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