cobalt
co|balt /k'oʊbɔːlt/
1 [N-UNCOUNT]
Cobalt is a hard silvery-white metal which is used to harden steel and for producing a blue dye.
...a country rich in copper, cobalt and diamonds.
2 [COLOUR]
Cobalt or cobalt blue is a deep blue colour.
...a woman in a soft cobalt blue dress.
1 [N-UNCOUNT]
Cobalt is a hard silvery-white metal which is used to harden steel and for producing a blue dye.
...a country rich in copper, cobalt and diamonds.
2 [COLOUR]
Cobalt or cobalt blue is a deep blue colour.
...a woman in a soft cobalt blue dress.