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Cobalt   Listen
noun
Cobalt  n.  
1.
(Chem.) A tough, lustrous, reddish white metal of the iron group, not easily fusible, and somewhat magnetic. Atomic weight 59.1. Symbol Co. Note: It occurs in nature in combination with arsenic, sulphur, and oxygen, and is obtained from its ores, smaltite, cobaltite, asbolite, etc. Its oxide colors glass or any flux, as borax, a fine blue, and is used in the manufacture of smalt. It is frequently associated with nickel, and both are characteristic ingredients of meteoric iron.
2.
A commercial name of a crude arsenic used as fly poison.
Cobalt bloom. Same as Erythrite.
Cobalt blue, a dark blue pigment consisting of some salt of cobalt, as the phosphate, ignited with alumina; called also cobalt ultramarine, and Thenard's blue.
Cobalt crust, earthy arseniate of cobalt.
Cobalt glance. (Min.) See Cobaltite.
Cobalt green, a pigment consisting essentially of the oxides of cobalt and zinc; called also Rinman's green.
Cobalt yellow (Chem.), a yellow crystalline powder, regarded as a double nitrite of cobalt and potassium.






Collaborative International Dictionary of English 0.48








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"Cobalt" Quotes from Famous Books



... rare in the museums, were very numerous here. This beautiful bird has a snow-white tail and its head is adorned with four cobalt-blue appendages, two above and two underneath the head. The Dayaks caught this and other birds alive in snares, which they are expert in constructing. I kept one alive for many days, and it soon became tame. It was a handsome, brave bird, and I was sorry one day to find it dead from want ...
— Through Central Borneo: - An Account of Two Years' Travel in the Land of Head-Hunters - Between the Years 1913 and 1917 • Carl Lumholtz

... his officers looked up and round. On the crest of the dunes behind them, in sharp silhouette against the deep cobalt of the sky, they beheld a tall, lean figure scrupulously dressed in black with silver lace, a crimson ostrich plume curled about the broad brim of his hat affording the only touch of colour. Under that hat was the tawny face of ...
— Captain Blood • Rafael Sabatini

... city from the sea on a summer's day, one sees only the tall, round clump of trees on the ramparts and, overtopping it, the old bell-tower with its fantastically shaped and ornamented stories and dome-top of deep cobalt blue. The land to either side is barely visible, and the green foliage flooded with pale sunshine seems to drift in the sun-mist on the grayish yellow waters. It is a dreamy little town, that once in ...
— The Bride of Dreams • Frederik van Eeden

... skirts inside out, tucking the edges about their stout hips; beneath the wide vivid circles of the dripping umbrellas these brilliantly colored under-petticoats showed a liberal revelation of scarlet hose and thick ankles sunk in the freshly polished black sabots. The men's cobalt-blue blouses and their peaked felt hats spotted the landscape with contrasting ...
— In and Out of Three Normady Inns • Anna Bowman Dodd

... Appliqee," i. 8) gives the following minima proportions in which metal may be worked on a grand scale, of course under the most favourable circumstances. The extremes are 0.25 (iron), and 0.00001 (gold); and antimony, bismuth, cobalt, and nickel are neglected, because the proportions ...
— The Land of Midian, Vol. 1 • Richard Burton

... elements are several instances of remarkable similarity of properties. Thus there is a strong resemblance between platinum and iridium; bromine and iodine; iron, manganese, and magnesium; cobalt and nickel; phosphorus and arsenic; but this resemblance consists mainly in their forming isomorphous compounds in which these elements exist in the same relative proportion. These compounds are similar, because the atoms of which they are composed are arranged ...
— Familiar Letters of Chemistry • Justus Liebig

... jagged like coals that as they looked began to smoulder with dawn. The light all about was lemon yellow. The walls of the village behind them were fervid primrose color splotched with shadows of sheer cobalt. Above the houses uncurled green spirals ...
— Rosinante to the Road Again • John Dos Passos

... all these twenty essential elements into consideration, and many so-called "complete" fertilizers contain at least sixteen to eighteen, if not all of the elements mentioned above. Cobalt, essential to animal nutrition, can also most economically be supplied through the soil, even though crops grow ...
— Northern Nut Growers Association Report of the Proceedings at the Thirty-Seventh Annual Report • Various

... Abstractions were a drug. But his thinking ended. Blue electric lights cast an amorous glow—an artificial moonlight—upon tables surrounding the fountain. Beneath the cobalt water of the basin, colored fish gliding like a weaving procession of little fat Mandarins. The remainder of the room also blue from shaded lights. That was why they dubbed it the Blue Inn. Blue lights made the Blue Inn. The air was heavy with ...
— Erik Dorn • Ben Hecht

... outlook on gardens, bean-poles, orchards, and vines was agreeable enough. If he chose to look further afield a silvery streak called the Rhine was visible, and beyond that again low blue hills stretched away until their cobalt and that of the sky got mixed on the palette of Nature. From this valley comes the famous Rauen-thaler wine. Most of the hills, indeed, are covered with vines, and the village houses showed grapes hanging from their eaves and peeping ...
— A War-time Journal, Germany 1914 and German Travel Notes • Harriet Julia Jephson

... and the air was filled with the sweet smell of vegetation drying in the sun. As she approached the other side, the blue sky curved down to meet the ocean on a far straight line. The yellow-green of the sea was set off by astonishing areas of clearest cobalt blue, and the flying spray from combers breaking for miles out on the North Shoals, caught the sunlight in a glory ...
— Where the Sun Swings North • Barrett Willoughby

... the bearers had resumed their slow procession, a picturesque frieze of tattered, indigo-robed, ebony figures, baskets on heads, against a cloudless cobalt sky, and again the hot air was invaded with the monotonous rise and fall ...
— The Fortieth Door • Mary Hastings Bradley

... which it is possible to write upon either paper or vellum, so that the characters shall become visible only when subjected to the action of fire. Zaffre, digested in aqua regia, and diluted with four times its weight of water, is sometimes employed; a green tint results. The regulus of cobalt, dissolved in spirit of nitre, gives a red. These colors disappear at longer or shorter intervals after the material written upon cools, but again become apparent upon ...
— The Works of Edgar Allan Poe - Volume 1 (of 5) of the Raven Edition • Edgar Allan Poe

... quartz, water, timber, hydroelectric potential, scenic beauty; small deposits of lignite, copper, cobalt, iron ore ...
— The 1990 CIA World Factbook • United States. Central Intelligence Agency

... of them marvelously rich, are still being made all over the state, in hitherto unknown and undeveloped territory. Besides gold, silver and copper, immense deposits of salt, borax, lime, platinum, sulphur, soda, potash-salts, cinnabar, arsenical ores, zinc, coal, antimony, cobalt, nickel, nitre, isinglass, manganese, alum, kaolin, iron, gypsum, mica and graphite ...
— Reno - A Book of Short Stories and Information • Lilyan Stratton

... all without admitting anything not strictly belonging to it. The foreground was now aflame with autumn colors, brown and purple and gold, ripe in the mellow sunshine; contrasting brightly with the deep, cobalt blue of the sky, and the black and gray, and pure, spiritual white of the rocks and glaciers. Down through the midst, the young Tuolumne was seen pouring from its crystal fountains, now resting in glassy pools as if ...
— The Mountains of California • John Muir

... tomb," says Looey, very sad, like they was closte personal friends of his'n. And he told me all about them and how Young Cobalt had done fur them. But from what I could make out it all happened away back in the early days. And shucks!—I didn't care a dern, ...
— Danny's Own Story • Don Marquis

... known as sapphire, if ground, could not produce translucent colour at all. The blue which Suger loved, and which is probably the same as that of these Chartres windows, cannot be made out of sapphires. Probably the "materia saphirorum" means cobalt only, but whatever it was, the glassmakers seem to agree that this glass of 1140-50 is the best ever made. M. Paul Durand in his official report of 1881 said that these windows, both artistically and mechanically, were of ...
— Mont-Saint-Michel and Chartres • Henry Adams



Words linked to "Cobalt" :   cobalt 60, cobalt ultramarine, smaltite, co, metal, cobaltite, metallic element, cobalt blue, cobalt bloom, atomic number 27



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