COBALT • DICTIONARY ONE.COM • Definition of Cobalt

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/kˈoʊbˌɔlt/ 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.

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Etymology of 'Cobalt'

Collaborative International Dictionary of English 0.48

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"Cobalt" Quotes from Famous Books

... in a slow voice; "I partly grasp your meaning. The pawning of the jewel is to me a mere nothing. I have had chequered times when the tea-pot and even the coffee-pot have been sold for the sake of a quarter of a cake of cobalt or of rose-madder, but then the tea-pot and the coffee-pot and the hair which grew on my head were undoubtedly my own. I cannot understand your taking another's property, nor your being deceitful about it. The paths of deceit are shut doors to me, naturally, ...

— Red Rose and Tiger Lily - or, In a Wider World • L. T. Meade

... resembled a goldfish, but which, of course, was nothing of the sort. Whatever it was, though, it kept growing brighter and brighter each time Francis added another attachment, and had already attained a degree of incandescence so intense that he had been forced to don cobalt-blue goggles in order to look at it. The date was the First of April, ...

— The Servant Problem • Robert F. Young

... some one person. Their eyes preserve, no doubt, something of the infinitude they have gazed on. Has nature, in her foresight, armed their retina with some reflecting background to enable them to endure the mirage of the sand, the torrents of sunshine, and the burning cobalt of the sky? or, do human beings, like other creatures, derive something from the surroundings among which they grow up, and preserve for ages the qualities they have imbibed from them? The great solution of this problem of race lies perhaps in the question itself. ...

— Scenes from a Courtesan's Life • Honore de Balzac

... with a great number of preparations of cobalt, nickel, bismuth, platinum and other salts which have been thought hitherto to be insensitive to the solar agency; but if they are partially sunned and then washed with nitrate of silver and put aside in the dark, the metallic silver is slowly reduced upon ...

— Photographic Reproduction Processes • P.C. Duchochois

... before that and the three were sitting on the terrace with a world of silver light and cobalt shadows about them. That is to say, two of them sat there in silence while the third came and went about his duties of changing records and needles and the winding of the machine—for he still dedicated himself ...

— The Tyranny of Weakness • Charles Neville Buck

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