tungstenn.

Brit.

/ˈtʌŋstən/,

/ˈtʌŋstɛn/, U.S.

/ˈtəŋstən/

Etymology: < Swedish tungsten, < tung heavy + sten stone.

†1. Mineralogy. = scheelite n., native calcium tungstate. Obsolete.

ΘΚΠ

the world > the earth > minerals > types of mineral > tungstates and molybdates > [noun] > scheelite group

tungsten1770

powellite1891

tungstenite1894

1770 G. von Engeström & E. M. da Costa tr. A. F. Cronstedt Ess. Syst. Mineral. 201 Ferrum calciforme terrâ quâdam incognitâ intimè mixtum. The Tungsten of the Swedes.

1786 T. Beddoes tr. C. W. Scheele Chem. Ess. 285 Lapis Ponderosus, or Tungsten... It is probable that the constituent parts of this..have been hitherto unknown.

1799 Med. & Physical Jrnl. 1 239 Tungsten... Scheele..affirmed that it consisted of calcareous earth, united to a peculiar acid.

1822 T. Webster Imison's Elem. Sci. & Art (new ed.) II. 120 A mineral called Tungsten or ponderous stone, affords a peculiar metal.

2. Chemistry. (Formerly also in Latin form tungstenum as in other names of metals.) A heavy, steel-grey, ductile, very infusible metal, contained in the above mineral and in wolfram n. (iron and manganese tungstate) and other minerals; used for wire in incandescent electric lamps. Symbol W (= wolframium); atomic weight 184 (O = 16).

ΘΚΠ

the world > matter > chemistry > elements and compounds > metals > specific elements > tungsten > [noun]

tungsten1796

tungstenite1796

wolfram1845

1796 Philos. Trans. (Royal Soc.) 86 291 The yellow oxyde of tungsten by ignition becomes blue or black.

1812 H. Davy Elements Chem. Philos. 427 Tungstenum is obtained from a mineral known by the name of wolfram.

1836–41 W. T. Brande Man. Chem. (ed. 5) 921 Tungsten..which has also been called Scheelium and Wolframium, was first obtained by Messrs. de Luyart [in 1783], from the tungstic acid previously discovered by Scheele, in 1781.

1862 London Rev. & Weekly Jrnl. 16 Aug. 154 Tungsten added to steel communicates a most intense hardness to it, and renders it also very fine-grained.

1911 Daily News 22 Aug. 2 Tungsten may be converted into strong ductile form and drawn into a wire only one thousandth of an inch in diameter.

1912 Ann. Rep. Chem. Soc. IX. 69 Tungsten melts at 3100° ± 60°.

Compounds

C1. General attributive.

tungsten filament n.

ΘΚΠ

the world > matter > light > artificial light > an artificial light > artificial light defined by light-source > electric light > [noun] > filament lamp > tungsten lamp and filament

wolfram lamp1907

tungsten lamp1909

tungsten filament1922

1922 R. Glazebrook Dict. Appl. Physics II. 379/2 From 1904..it became obvious that the future of the incandescent lamp for some time to come would be with the tungsten filament lamp.

1962 V. Nabokov Pale Fire 192 The dead, the gentle dead—who knows?—In tungsten filaments abide.

tungsten lamp n.

ΘΚΠ

the world > matter > light > artificial light > an artificial light > artificial light defined by light-source > electric light > [noun] > filament lamp > tungsten lamp and filament

wolfram lamp1907

tungsten lamp1909

tungsten filament1922

1909 Installation News II. 171/2 The Tungsten lamp will not withstand over running to any great extent.

tungsten-steel n.

ΘΚΠ

society > occupation and work > materials > derived or manufactured material > metal > steel > [noun] > alloy steels > tungsten steel

tungsten-steel1862

wolfram-steel1862

1862 London Rev. & Weekly Jrnl. 16 Aug. 154 The alloy..is now becoming rather celebrated under the name of wolfram- or tungsten-steel.

tungsten wire n.

ΚΠ

1911 Encycl. Brit. XVI. 669/2 The zirconium and tungsten wire lamps are equal to or surpass the tantalum lamp.

C2.

tungsten carbide n. either of two compounds of tungsten and carbon, WC and W₂C, that are very hard and are used for cutting tools and abrasives.

ΘΚΠ

the world > matter > chemistry > elements and compounds > metals > specific elements > tungsten > [noun] > compounds

tungsten carbide1899

1899 Jrnl. Chem. Soc. 76 ii. 104 On heating a mixture of tungstic anhydride.., iron.., and petroleum coke.., an iron tungsten carbide..is obtained.

1930 Engineering 14 Nov. 634/2 The enhanced cutting properties of the newer cutting steels, such as the tungsten-carbide tools.

1963 C. R. Cowell et al. Inlays, Crowns, & Bridges iii. 12 Penetrate to just within the dentine, using a small round tungsten-carbide bur.

1973 Sci. Amer. July 42/1 Tungsten carbide, a cermet, has long been used as a cutting tool.

Derivatives

† ˈtungstenane n. Obsolete Davy's proposed name for a chloride of tungsten: see -ane suffix².

ΚΠ

1812 H. Davy Elements Chem. Philos. 429 Tungstenane.

tungˈstenic adj. of, pertaining to, or containing tungsten, tungstic.

ΘΚΠ

the world > the earth > minerals > mineral sources > [adjective] > yielding a mineral or metal > tungsten

tungstenic1794

tungstenical1794

tungstenitic1795

tungstic1796

tungstous1860

the world > matter > chemistry > elements and compounds > metals > specific elements > tungsten > [adjective]

tungstenic1794

tungstenical1794

tungstenitic1795

tungstic1796

tungstous1860

1794 R. Kirwan Elements Mineral. (ed. 2) I. 131 The tungstenic acid..assumes a blue colour when heated to redness.

† tungˈstenical adj. Obsolete = tungstenic adj.

ΘΚΠ

the world > the earth > minerals > mineral sources > [adjective] > yielding a mineral or metal > tungsten

tungstenic1794

tungstenical1794

tungstenitic1795

tungstic1796

tungstous1860

the world > matter > chemistry > elements and compounds > metals > specific elements > tungsten > [adjective]

tungstenic1794

tungstenical1794

tungstenitic1795

tungstic1796

tungstous1860

1794 R. Kirwan Elements Mineral. (ed. 2) I. 133 An ore of tungstenical substance.

tungsteˈniferous adj. [-ferous comb. form] yielding tungsten.

tungsteˈnitic adj. = tungstenic adj.

ΘΚΠ

the world > the earth > minerals > mineral sources > [adjective] > yielding a mineral or metal > tungsten

tungstenic1794

tungstenical1794

tungstenitic1795

tungstic1796

tungstous1860

the world > matter > chemistry > elements and compounds > metals > specific elements > tungsten > [adjective]

tungstenic1794

tungstenical1794

tungstenitic1795

tungstic1796

tungstous1860

1795 R. Kirwan Elem. Mineral. (ed. 2) II. 316 Tungstenitic Calx, with Iron and Manganese, or Iron singly. Wolfram.

This entry has not yet been fully updated (first published 1915; most recently modified version published online March 2022).

单词	tungsten
释义	tungstenn. Brit. /ˈtʌŋstən/, /ˈtʌŋstɛn/, U.S. /ˈtəŋstən/ Etymology: < Swedish tungsten, < tung heavy + sten stone. †1. Mineralogy. = scheelite n., native calcium tungstate. Obsolete. ΘΚΠ the world > the earth > minerals > types of mineral > tungstates and molybdates > [noun] > scheelite group tungsten1770 powellite1891 tungstenite1894 1770 G. von Engeström & E. M. da Costa tr. A. F. Cronstedt Ess. Syst. Mineral. 201 Ferrum calciforme terrâ quâdam incognitâ intimè mixtum. The Tungsten of the Swedes. 1786 T. Beddoes tr. C. W. Scheele Chem. Ess. 285 Lapis Ponderosus, or Tungsten... It is probable that the constituent parts of this..have been hitherto unknown. 1799 Med. & Physical Jrnl. 1 239 Tungsten... Scheele..affirmed that it consisted of calcareous earth, united to a peculiar acid. 1822 T. Webster Imison's Elem. Sci. & Art (new ed.) II. 120 A mineral called Tungsten or ponderous stone, affords a peculiar metal. 2. Chemistry. (Formerly also in Latin form tungstenum as in other names of metals.) A heavy, steel-grey, ductile, very infusible metal, contained in the above mineral and in wolfram n. (iron and manganese tungstate) and other minerals; used for wire in incandescent electric lamps. Symbol W (= wolframium); atomic weight 184 (O = 16). ΘΚΠ the world > matter > chemistry > elements and compounds > metals > specific elements > tungsten > [noun] tungsten1796 tungstenite1796 wolfram1845 1796 Philos. Trans. (Royal Soc.) 86 291 The yellow oxyde of tungsten by ignition becomes blue or black. 1812 H. Davy Elements Chem. Philos. 427 Tungstenum is obtained from a mineral known by the name of wolfram. 1836–41 W. T. Brande Man. Chem. (ed. 5) 921 Tungsten..which has also been called Scheelium and Wolframium, was first obtained by Messrs. de Luyart [in 1783], from the tungstic acid previously discovered by Scheele, in 1781. 1862 London Rev. & Weekly Jrnl. 16 Aug. 154 Tungsten added to steel communicates a most intense hardness to it, and renders it also very fine-grained. 1911 Daily News 22 Aug. 2 Tungsten may be converted into strong ductile form and drawn into a wire only one thousandth of an inch in diameter. 1912 Ann. Rep. Chem. Soc. IX. 69 Tungsten melts at 3100° ± 60°. Compounds C1. General attributive. tungsten filament n. ΘΚΠ the world > matter > light > artificial light > an artificial light > artificial light defined by light-source > electric light > [noun] > filament lamp > tungsten lamp and filament wolfram lamp1907 tungsten lamp1909 tungsten filament1922 1922 R. Glazebrook Dict. Appl. Physics II. 379/2 From 1904..it became obvious that the future of the incandescent lamp for some time to come would be with the tungsten filament lamp. 1962 V. Nabokov Pale Fire 192 The dead, the gentle dead—who knows?—In tungsten filaments abide. tungsten lamp n. ΘΚΠ the world > matter > light > artificial light > an artificial light > artificial light defined by light-source > electric light > [noun] > filament lamp > tungsten lamp and filament wolfram lamp1907 tungsten lamp1909 tungsten filament1922 1909 Installation News II. 171/2 The Tungsten lamp will not withstand over running to any great extent. tungsten-steel n. ΘΚΠ society > occupation and work > materials > derived or manufactured material > metal > steel > [noun] > alloy steels > tungsten steel tungsten-steel1862 wolfram-steel1862 1862 London Rev. & Weekly Jrnl. 16 Aug. 154 The alloy..is now becoming rather celebrated under the name of wolfram- or tungsten-steel. tungsten wire n. ΚΠ 1911 Encycl. Brit. XVI. 669/2 The zirconium and tungsten wire lamps are equal to or surpass the tantalum lamp. C2. tungsten carbide n. either of two compounds of tungsten and carbon, WC and W₂C, that are very hard and are used for cutting tools and abrasives. ΘΚΠ the world > matter > chemistry > elements and compounds > metals > specific elements > tungsten > [noun] > compounds tungsten carbide1899 1899 Jrnl. Chem. Soc. 76 ii. 104 On heating a mixture of tungstic anhydride.., iron.., and petroleum coke.., an iron tungsten carbide..is obtained. 1930 Engineering 14 Nov. 634/2 The enhanced cutting properties of the newer cutting steels, such as the tungsten-carbide tools. 1963 C. R. Cowell et al. Inlays, Crowns, & Bridges iii. 12 Penetrate to just within the dentine, using a small round tungsten-carbide bur. 1973 Sci. Amer. July 42/1 Tungsten carbide, a cermet, has long been used as a cutting tool. Derivatives † ˈtungstenane n. Obsolete Davy's proposed name for a chloride of tungsten: see -ane suffix². ΚΠ 1812 H. Davy Elements Chem. Philos. 429 Tungstenane. tungˈstenic adj. of, pertaining to, or containing tungsten, tungstic. ΘΚΠ the world > the earth > minerals > mineral sources > [adjective] > yielding a mineral or metal > tungsten tungstenic1794 tungstenical1794 tungstenitic1795 tungstic1796 tungstous1860 the world > matter > chemistry > elements and compounds > metals > specific elements > tungsten > [adjective] tungstenic1794 tungstenical1794 tungstenitic1795 tungstic1796 tungstous1860 1794 R. Kirwan Elements Mineral. (ed. 2) I. 131 The tungstenic acid..assumes a blue colour when heated to redness. † tungˈstenical adj. Obsolete = tungstenic adj. ΘΚΠ the world > the earth > minerals > mineral sources > [adjective] > yielding a mineral or metal > tungsten tungstenic1794 tungstenical1794 tungstenitic1795 tungstic1796 tungstous1860 the world > matter > chemistry > elements and compounds > metals > specific elements > tungsten > [adjective] tungstenic1794 tungstenical1794 tungstenitic1795 tungstic1796 tungstous1860 1794 R. Kirwan Elements Mineral. (ed. 2) I. 133 An ore of tungstenical substance. tungsteˈniferous adj. [-ferous comb. form] yielding tungsten. tungsteˈnitic adj. = tungstenic adj. ΘΚΠ the world > the earth > minerals > mineral sources > [adjective] > yielding a mineral or metal > tungsten tungstenic1794 tungstenical1794 tungstenitic1795 tungstic1796 tungstous1860 the world > matter > chemistry > elements and compounds > metals > specific elements > tungsten > [adjective] tungstenic1794 tungstenical1794 tungstenitic1795 tungstic1796 tungstous1860 1795 R. Kirwan Elem. Mineral. (ed. 2) II. 316 Tungstenitic Calx, with Iron and Manganese, or Iron singly. Wolfram. This entry has not yet been fully updated (first published 1915; most recently modified version published online March 2022). < n.1770
随便看	grand cross grand cru grand customer grand day grand detail grand distress grand duchess grand duchy grand duke grand entree grand feu grand finale grand fir grand fleet grand great cross grand guard grand guignol grand guignolesque grand guignolish grand guignolism grand hooded tanager grand horizontal grand hospitaller grand inquest of the nation grand inquisitor