cobaltnoun [ U ]
uk/ˈkəʊ.bɒlt/us/ˈkoʊ.bɑːlt/symbol Cocobalt noun [ U ] (METAL)
a chemical element that is a hard silver-white metal, used in metal mixtures and for making materials blue
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Chemical elements
- alkali metal
- antimony
- calcium
- carbonic
- carbonic acid
- cesium
- cl
- graphene
- lithium
- nickel
- plutonium
- quicksilver
- selenium
- sodium
- strontium
- sulphur
- transition metal
- urea
- vanadium
- zinc
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cobalt noun [ U ] (COLOUR)
also cobalt blue a deep blue or greenish-blue colour
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Less common colours
- aquamarine
- azure
- beige
- blood red
- burgundy
- burnish
- cerulean
- chestnut
- chrome yellow
- earth colour
- ginger
- khaki
- magenta
- maroon
- ochre
- raw sienna
- ruddy
- russet
- sage green
- violet
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cobaltadjective
uk/ˈkəʊ.bɒlt/us/ˈkoʊ.bɑːlt/also cobalt bluehaving a deep blue or greenish-blue colour
Thesaurus: synonyms and related words
Less common colours
- aquamarine
- azure
- beige
- blood red
- burgundy
- burnish
- cerulean
- chestnut
- chrome yellow
- earth colour
- ginger
- khaki
- magenta
- maroon
- ochre
- raw sienna
- ruddy
- russet
- sage green
- violet
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