Definition of cobalt in English:

cobalt

noun ˈkəʊbɒltˈkəʊbɔːltˈkoʊˌbɔlt

mass noun

1The chemical element of atomic number 27, a hard silvery-white magnetic metal.
（化学元素）钴（符号： Co ）
Example sentencesExamples
- They blended and heated plutonium with gallium and cobalt and then slowly cooled the molten mixture.
- The slow growth rate is thought to enhance the absorption of heavy metals like copper and cobalt from sea water.
- This packing arrangement is also observed for many metals, including rubidium, osmium, cobalt, zinc, and cadmium.
- We are already exporting gold and we have substantial resources of silver, uranium, nickel and cobalt, the deposits of which need further investigation.
- Besides gold and diamonds, the area is rich in copper, uranium, palladium and cobalt, as well as coltan ore.
1. 1.1
  as modifier a cobalt sky
  short for cobalt blue
  Example sentencesExamples
  On a walk through the five-acre garden you encounter great bushes of Blue Bonnet, whose huge flower heads vary from powder blue to cobalt.
  What snatches of blue sky she could see were deepening from azure to cobalt and she thought she saw the first star twinkling already.
  Above, the serrated edge of the granite ridge cuts through the cobalt sky.
  It was of dark cobalt, running to purple, and had golden thread work all along the hem and sleeves.
  It was February with cobalt skies, snappy air, and a fresh blanket of snow.
  The cloudless sky was the color of cobalt, so blue he felt he could breathe it in and out and become a part of it.
  This past week in the forest park, the fiery foliage set against cobalt skies was a sight to behold.
  And then came the third line, a collection in shades of aquamarine, cobalt, ethereal blue, sky blue, and dream blue.
  The softly tailored look is also very much in this season with glowing colours such as cobalt and rich greens coupled with subtly shaded creams and browns.
  I got out my sketch book and showed him some of the paintings I'd done of lizard head spires piercing skies of cobalt and turpentine.
  Not only were his eyes lacking their normal cobalt hue and his pupils disturbingly restricted but now his eyes were blood shot as well.
  His stormy cobalt eyes glanced down at her and he sighed again.
  He lifted up his cobalt eyes to his friend for only a split second and then glanced back down.
  He muttered something in angry fluent French, as he tilted his head back and looked up at the star-dusted cobalt sky.
  The purple on his surcoat made his striking cobalt eyes seem deep violet.
  He left a tip and walked outside to his cobalt truck, driving away only a few moments later.
  Side plates at each place setting are coloured a brilliant turquoise or patterned in cobalt or shaped like river boats.
  Other houses' bathrooms are characterised by bright cobalt blues or pearl whites.
  His gaze caught mine and for a second his cobalt eyes were a mirror for the sun.
  He took her hand and kissed it, his cobalt eyes twinkling.

Cobalt is chiefly obtained as a by-product from nickel and copper ores. It is a transition metal similar in many respects to nickel and is mainly used as a component of magnetic alloys and those designed for use at high temperatures

Derivatives

cobaltic

adjective kə(ʊ)ˈbɒltɪkkə(ʊ)ˈbɔːltɪkkoʊˈbɔltɪk

The cobaltic complex has also been synthesized by metal exchange from previously obtained sodium ascorbate and cobaltic dichloride hexahydrate in aqueous medium.
Example sentencesExamples
- An opportunity might have been lost for guiding mining operations to the working of any payable cobaltic vein.
- Hydrated cobalt oxide or cobaltic hydroxide is produced by adding sodium hydroxide to this solution.

cobaltous

adjective kə(ʊ)ˈbɔːltəskə(ʊ)ˈbɒltəs

We produce 300 tons of cobalt oxide and 180 tons of cobaltous oxide yearly, one of the largest production and sale bases in China.

Origin

Late 17th century: from German Kobalt 'imp, demon' (because the presence of cobalt-bearing ore made it more difficult to extract silver, and miners believed that it was harmful to the silver ore with which it occurred).

Cobalt is a hard silvery-white magnetic metal, often found in the ground alongside deposits of silver. The name comes from German Kobalt, a variation of the word Kobold meaning ‘goblin or demon’, and perhaps related to goblin. Medieval silver miners gave the metal this name because of the trouble it caused them. They believed that cobalt was harmful both to the silver ores with which it occurred and to their own health, though these effects were mainly due to the arsenic and sulphur with which it was frequently combined.

Definition of cobalt in US English:

cobalt

nounˈkoʊˌbɔltˈkōˌbôlt

1The chemical element of atomic number 27, a hard silvery-white magnetic metal.
（化学元素）钴（符号： Co ）
Cobalt is chiefly obtained as a byproduct from nickel and copper ores. It is a transition metal similar in many respects to nickel and is mainly used as a component of magnetic alloys and those designed for use at high temperatures
Example sentencesExamples
- They blended and heated plutonium with gallium and cobalt and then slowly cooled the molten mixture.
- The slow growth rate is thought to enhance the absorption of heavy metals like copper and cobalt from sea water.
- This packing arrangement is also observed for many metals, including rubidium, osmium, cobalt, zinc, and cadmium.
- We are already exporting gold and we have substantial resources of silver, uranium, nickel and cobalt, the deposits of which need further investigation.
- Besides gold and diamonds, the area is rich in copper, uranium, palladium and cobalt, as well as coltan ore.
1. 1.1
  as modifier a cobalt sky
  short for cobalt blue
  Example sentencesExamples
  Not only were his eyes lacking their normal cobalt hue and his pupils disturbingly restricted but now his eyes were blood shot as well.
  Above, the serrated edge of the granite ridge cuts through the cobalt sky.
  On a walk through the five-acre garden you encounter great bushes of Blue Bonnet, whose huge flower heads vary from powder blue to cobalt.
  His stormy cobalt eyes glanced down at her and he sighed again.
  It was of dark cobalt, running to purple, and had golden thread work all along the hem and sleeves.
  He took her hand and kissed it, his cobalt eyes twinkling.
  His gaze caught mine and for a second his cobalt eyes were a mirror for the sun.
  He lifted up his cobalt eyes to his friend for only a split second and then glanced back down.
  Side plates at each place setting are coloured a brilliant turquoise or patterned in cobalt or shaped like river boats.
  Other houses' bathrooms are characterised by bright cobalt blues or pearl whites.
  This past week in the forest park, the fiery foliage set against cobalt skies was a sight to behold.
  I got out my sketch book and showed him some of the paintings I'd done of lizard head spires piercing skies of cobalt and turpentine.
  What snatches of blue sky she could see were deepening from azure to cobalt and she thought she saw the first star twinkling already.
  The cloudless sky was the color of cobalt, so blue he felt he could breathe it in and out and become a part of it.
  The purple on his surcoat made his striking cobalt eyes seem deep violet.
  He left a tip and walked outside to his cobalt truck, driving away only a few moments later.
  It was February with cobalt skies, snappy air, and a fresh blanket of snow.
  And then came the third line, a collection in shades of aquamarine, cobalt, ethereal blue, sky blue, and dream blue.
  The softly tailored look is also very much in this season with glowing colours such as cobalt and rich greens coupled with subtly shaded creams and browns.
  He muttered something in angry fluent French, as he tilted his head back and looked up at the star-dusted cobalt sky.

Origin

Late 17th century: from German Kobalt ‘imp, demon’ (because the presence of cobalt-bearing ore made it more difficult to extract silver, and miners believed that it was harmful to the silver ore with which it occurred).

词汇	cobalt
释义	Definition of cobalt in English: cobalt noun ˈkəʊbɒltˈkəʊbɔːltˈkoʊˌbɔlt mass noun 1The chemical element of atomic number 27, a hard silvery-white magnetic metal. （化学元素）钴（符号： Co ） Example sentencesExamples They blended and heated plutonium with gallium and cobalt and then slowly cooled the molten mixture. The slow growth rate is thought to enhance the absorption of heavy metals like copper and cobalt from sea water. This packing arrangement is also observed for many metals, including rubidium, osmium, cobalt, zinc, and cadmium. We are already exporting gold and we have substantial resources of silver, uranium, nickel and cobalt, the deposits of which need further investigation. Besides gold and diamonds, the area is rich in copper, uranium, palladium and cobalt, as well as coltan ore. 1.1 as modifier a cobalt sky short for cobalt blue Example sentencesExamples On a walk through the five-acre garden you encounter great bushes of Blue Bonnet, whose huge flower heads vary from powder blue to cobalt. What snatches of blue sky she could see were deepening from azure to cobalt and she thought she saw the first star twinkling already. Above, the serrated edge of the granite ridge cuts through the cobalt sky. It was of dark cobalt, running to purple, and had golden thread work all along the hem and sleeves. It was February with cobalt skies, snappy air, and a fresh blanket of snow. The cloudless sky was the color of cobalt, so blue he felt he could breathe it in and out and become a part of it. This past week in the forest park, the fiery foliage set against cobalt skies was a sight to behold. And then came the third line, a collection in shades of aquamarine, cobalt, ethereal blue, sky blue, and dream blue. The softly tailored look is also very much in this season with glowing colours such as cobalt and rich greens coupled with subtly shaded creams and browns. I got out my sketch book and showed him some of the paintings I'd done of lizard head spires piercing skies of cobalt and turpentine. Not only were his eyes lacking their normal cobalt hue and his pupils disturbingly restricted but now his eyes were blood shot as well. His stormy cobalt eyes glanced down at her and he sighed again. He lifted up his cobalt eyes to his friend for only a split second and then glanced back down. He muttered something in angry fluent French, as he tilted his head back and looked up at the star-dusted cobalt sky. The purple on his surcoat made his striking cobalt eyes seem deep violet. He left a tip and walked outside to his cobalt truck, driving away only a few moments later. Side plates at each place setting are coloured a brilliant turquoise or patterned in cobalt or shaped like river boats. Other houses' bathrooms are characterised by bright cobalt blues or pearl whites. His gaze caught mine and for a second his cobalt eyes were a mirror for the sun. He took her hand and kissed it, his cobalt eyes twinkling. Cobalt is chiefly obtained as a by-product from nickel and copper ores. It is a transition metal similar in many respects to nickel and is mainly used as a component of magnetic alloys and those designed for use at high temperatures Derivatives cobaltic adjective kə(ʊ)ˈbɒltɪkkə(ʊ)ˈbɔːltɪkkoʊˈbɔltɪk The cobaltic complex has also been synthesized by metal exchange from previously obtained sodium ascorbate and cobaltic dichloride hexahydrate in aqueous medium. Example sentencesExamples An opportunity might have been lost for guiding mining operations to the working of any payable cobaltic vein. Hydrated cobalt oxide or cobaltic hydroxide is produced by adding sodium hydroxide to this solution. cobaltous adjective kə(ʊ)ˈbɔːltəskə(ʊ)ˈbɒltəs We produce 300 tons of cobalt oxide and 180 tons of cobaltous oxide yearly, one of the largest production and sale bases in China. Origin Late 17th century: from German Kobalt 'imp, demon' (because the presence of cobalt-bearing ore made it more difficult to extract silver, and miners believed that it was harmful to the silver ore with which it occurred). Cobalt is a hard silvery-white magnetic metal, often found in the ground alongside deposits of silver. The name comes from German Kobalt, a variation of the word Kobold meaning ‘goblin or demon’, and perhaps related to goblin. Medieval silver miners gave the metal this name because of the trouble it caused them. They believed that cobalt was harmful both to the silver ores with which it occurred and to their own health, though these effects were mainly due to the arsenic and sulphur with which it was frequently combined. Definition of cobalt in US English: cobalt nounˈkoʊˌbɔltˈkōˌbôlt 1The chemical element of atomic number 27, a hard silvery-white magnetic metal. （化学元素）钴（符号： Co ） Cobalt is chiefly obtained as a byproduct from nickel and copper ores. It is a transition metal similar in many respects to nickel and is mainly used as a component of magnetic alloys and those designed for use at high temperatures Example sentencesExamples They blended and heated plutonium with gallium and cobalt and then slowly cooled the molten mixture. The slow growth rate is thought to enhance the absorption of heavy metals like copper and cobalt from sea water. This packing arrangement is also observed for many metals, including rubidium, osmium, cobalt, zinc, and cadmium. We are already exporting gold and we have substantial resources of silver, uranium, nickel and cobalt, the deposits of which need further investigation. Besides gold and diamonds, the area is rich in copper, uranium, palladium and cobalt, as well as coltan ore. 1.1 as modifier a cobalt sky short for cobalt blue Example sentencesExamples Not only were his eyes lacking their normal cobalt hue and his pupils disturbingly restricted but now his eyes were blood shot as well. Above, the serrated edge of the granite ridge cuts through the cobalt sky. On a walk through the five-acre garden you encounter great bushes of Blue Bonnet, whose huge flower heads vary from powder blue to cobalt. His stormy cobalt eyes glanced down at her and he sighed again. It was of dark cobalt, running to purple, and had golden thread work all along the hem and sleeves. He took her hand and kissed it, his cobalt eyes twinkling. His gaze caught mine and for a second his cobalt eyes were a mirror for the sun. He lifted up his cobalt eyes to his friend for only a split second and then glanced back down. Side plates at each place setting are coloured a brilliant turquoise or patterned in cobalt or shaped like river boats. Other houses' bathrooms are characterised by bright cobalt blues or pearl whites. This past week in the forest park, the fiery foliage set against cobalt skies was a sight to behold. I got out my sketch book and showed him some of the paintings I'd done of lizard head spires piercing skies of cobalt and turpentine. What snatches of blue sky she could see were deepening from azure to cobalt and she thought she saw the first star twinkling already. The cloudless sky was the color of cobalt, so blue he felt he could breathe it in and out and become a part of it. The purple on his surcoat made his striking cobalt eyes seem deep violet. He left a tip and walked outside to his cobalt truck, driving away only a few moments later. It was February with cobalt skies, snappy air, and a fresh blanket of snow. And then came the third line, a collection in shades of aquamarine, cobalt, ethereal blue, sky blue, and dream blue. The softly tailored look is also very much in this season with glowing colours such as cobalt and rich greens coupled with subtly shaded creams and browns. He muttered something in angry fluent French, as he tilted his head back and looked up at the star-dusted cobalt sky. Origin Late 17th century: from German Kobalt ‘imp, demon’ (because the presence of cobalt-bearing ore made it more difficult to extract silver, and miners believed that it was harmful to the silver ore with which it occurred).
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