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Learner's Dictionary
cobalt
2 ENTRIES FOUND:
cobalt
(noun)
cobalt blue
(noun)
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cobalt
/
ˈ
koʊˌbɑːlt/
noun
cobalt
/
ˈ
koʊˌbɑːlt/
noun
Learner's definition of COBALT
[
noncount
]
:
a hard, shiny, silver-white metal that is often mixed with other metals
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