Advertisement
Advertisement
cobalt
[ koh-bawlt ]
noun
- a silver-white metallic element with a faint pinkish tinge, occurring in compounds whose silicates afford important blue coloring substances for ceramics. : Co; : 58.933; : 27; : 8.9 at 20°C.
cobalt
/ ˈəʊɔː /
noun
- a brittle hard silvery-white element that is a ferromagnetic metal: occurs principally in cobaltite and smaltite and is widely used in alloys. The radioisotope cobalt-60 , with a half-life of 5.3 years, is used in radiotherapy and as a tracer. Symbol: Co; atomic no: 27; atomic wt: 58.93320; valency: 2 or 3; relative density: 8.9; melting pt: 1495°C; boiling pt: 2928°C
cobalt
- A silvery-white, hard, brittle metallic element that occurs widely in metal ores. It is used to make magnetic alloys, heat-resistant alloys, and blue pigment for ceramics and glass. Atomic number 27; atomic weight 58.9332; melting point 1,495°C; boiling point 2,900°C; specific gravity 8.9; valence 2, 3.
- See Periodic Table
Word History and Origins
Word History and Origins
Origin of cobalt1
Compare Meanings
How does cobalt compare to similar and commonly confused words? Explore the most common comparisons:
Example Sentences
China dominates the production of rare earths and critical metals like cobalt and lithium.
Albanese's proposed reserve includes rare earths as well as other critical minerals of which Australia is a top producer - like lithium and cobalt.
Shasta with puffy white clouds drifting across a cobalt blue sky, Griffin recalled one of his worst days on the job.
The brothers themselves appeared in court via a video feed from a San Diego prison, wearing identical cobalt blue prison uniforms.
DR Congo has large deposits of coltan and cobalt, used in electronic equipment and batteries for electric cars, which are currently largely extracted by Chinese mining companies.
Advertisement
Related Words
Advertisement
Advertisement
Advertisement
Browse