Meaning
2 senses(uncountable, usually)A chemical element (symbol Co) with an atomic number of 27: a hard, lustrous, silver-gray metal.
Kobalt
ко́бальтkóbalʹt
ко́бальтkóbalʹt
a hard ferromagnetic silver-white bivalent or trivalent metallic element; a trace element in plant and animal nutrition
(uncountable, usually)Cobalt blue.
Examples
6 sentencesIt's made of cobalt and nickel.
Cobalt is a transition metal.
ruКобальт - переходный металл.
Cobalt is a valuable mineral.
The DRC exports cobalt.
Some of the cobalt used in phone and laptop batteries is dug out by hand in Congo.
deDas Kobalt, das in Telefon- und Laptopbatterien zum Einsatz kommt, wird zum Teil im Kongo mit der Hand ausgegraben.
Translations
9 languagesBy meaning 1
By meaning 1
By meaning 1
Origin
From German Kobalt, formerly also Kobald, ‑olt, ‑old, ‑elt, ‑el, apparently the same wordFrom German Kobalt, formerly also Kobald, ‑olt, ‑old, ‑elt, ‑el, apparently the same word as Kobold (“goblin”), from Middle High German, which became also a Harz Mountains silver miners’ term for rock laced with arsenic and sulfur, so called because it degraded the ore and made the miners ill. Doublet of kobold.
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Forms
plural: cobalts| Singular | cobalt |
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uncountable
Synonyms
2 synonyms- a hard ferromagnetic silver-white bivalent or trivalent metallic element; a trace element in plant and animal nutrition:Coatomic number 27
Word family
40 related wordsLessons for this word
1 lessons- A1Countable and uncountable nouns — Because it can be uncountable