cobalt
nounUK /ˈkəʊ.bɒlt/
US /ˈkoʊ.bɑːlt/
Cobalt is a shiny, hard metal that is blue-gray in color.
The artist used a paint made with cobalt to get a bright blue color.
SYNONYMS
OTHER MEANINGS
2. A deep blue color used in paints and glass.
She painted the sky in a rich cobalt.
3. A chemical element with the symbol Co and atomic number 27.
Cobalt is often found in meteorites.
4. A material used to make strong magnets and batteries.
The phone's battery contains cobalt.