Meaning & use
cobalt
A hard, silvery-white metallic chemical element used in alloys and batteries, or the deep blue pigment made from its compounds.
See it in a sentence
The mine exports cobalt used in the batteries of electric vehicles.
The artist mixed cobalt into the sky to give the painting a rich, deep blue.
A note on using this word
As a color, "cobalt" describes a strong blue; as an element, its symbol is Co, and it is essential in many rechargeable batteries.
Words with a similar meaning
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