tungsten

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tung·sten

 (tŭng′stən)
n. Symbol W
A hard, brittle, corrosion-resistant, gray to white metallic element extracted from wolframite, scheelite, and other minerals, having the highest melting point and lowest vapor pressure of any metal. Tungsten and its alloys are used in high-temperature structural materials and wear-resistant tools and machine parts; in electrical elements, notably lamp filaments; and in instruments requiring thermally compatible glass-to-metal seals. Atomic number 74; atomic weight 183.84; melting point 3,422°C; boiling point 5,555°C; specific gravity 19.3 (20°C); valence 2, 3, 4, 5, 6. Also called wolfram. See Periodic Table.

[Swedish : tung, heavy (from Old Norse thungr) + sten, stone (from Old Norse steinn; see stāi- in Indo-European roots).]

tung·sten′ic (-stĕn′ĭk) adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

tungsten

(ˈtʌŋstən)
n
(Elements & Compounds) 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
[C18: from Swedish tung heavy + sten stone]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

tung•sten

(ˈtʌŋ stən)

n.
a rare, bright gray, lustrous metallic element having a high melting point, 3410°C: used in electric-lamp filaments. Symbol: W; at. wt.: 183.85; at. no.: 74; sp. gr.: 19.3.
Also called wolfram.
[1760–70; < Swedish, =tung heavy + sten stone]
tung•sten′ic (-ˈstɛn ɪk) adj.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

tung·sten

(tŭng′stən)
Symbol W A hard, gray to white metallic element that is very resistant to corrosion. It has the highest melting point of all elements. Tungsten remains very strong at high temperatures and is used to make light-bulb filaments and to increase the hardness and strength of steel. Atomic number 74. Also called wolfram. See Periodic Table.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.tungsten - a heavy grey-white metallic elementtungsten - 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
metal, metallic element - any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.
scheelite - a mineral used as an ore of tungsten
iron manganese tungsten, wolframite - a mineral consisting of iron and manganese tungstate in crystalline form; the principal ore of tungsten; found in quartz veins associated with granitic rocks
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Translations
wolfram
wolfram
volfram
volframi
volfram
volfrám
þungsteinn
タングステン
wolframium
volframas
wolfram
wolfram
tungstenwolfram
wolfram
volfram
volfram
tungstenvolfram

tungsten

[ˈtʌŋstən] Ntungsteno m
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005

tungsten

[ˈtʌŋstən]
ntungstène m
modif [lamp, light] → au tungstène
Collins English/French Electronic Resource. © HarperCollins Publishers 2005

tungsten

nWolfram nt
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007

tungsten

[ˈtʌŋstən] ntungsteno
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995
References in periodicals archive ?
It's still difficult for consumers to tell the difference between an incandescent bulb and a filament LED, and manufacturers like GE say they need to do more to promote the benefits of this growing market.
They had their light bulb moment when they surrounded an incandescent bulb filament with a special crystal that bounced back energy that had previously been lost as heat to create a light that is more efficient than modern bulbs.
Surely it is time for the energy- squandering incandescent bulb to go.
Available with standard size bayonet (B22) or small screw (e14) fittings with outputs of 42W (equivalent light output of traditional 60W incandescent), or 70W for the GLS 'Globe' style only (equivalent to a 100W incandescent bulb).
I am the queen bee of LED bulbs, and I have news to share: Cree has introduced a $13 dimmable warm white LED bulb that replaces a 60-watt incandescent bulb. Thirteen bucks!
Durable: LEDs do not have a filament, so they are not damaged in circumstances when a regular incandescent bulb would be broken.
Compared with an incandescent bulb, CFLs typically render colors with only 75-80 percent of the same faithfulness to natural daylight.
Specifically, efficiency standards for lightbulbs set by a 2007 law that ended the sale of the common 100-watt incandescent bulb.
LEDs have typical efficiencies of 110 lumen per watt and an operating life of 50,000 to 80,000 burning hours as compared to a pitiable 5 to 20 lumen per watt and life of only 1,000 burning hours for the commonly-used incandescent bulb, said the ASSOCHAM study titled 'Encashing Lighting Energy Efficiencies - A National Strategy Document.'
Meanwhile, Osram Sylvania says it has developed the only American-made 72-watt halogen incandescent bulb that is designed to replace the phased-out 100-watt standard incandescent bulb.
They are 80 percent more energy efficient than incandescent bulbs, using 12W for a light output of approximately 800 lumens the equivalent of a 60W incandescent bulb.
ISLAMABAD, December 01, 2011 (Balochistan Times): The electricity consumers could save as many as Rs.1,700 per bulb if they use fluorescent light (10 hours a day) instead of using a normal incandescent bulb without compromising on illumination.