Definition: Meaning of, cobalt bloom in English to English dictionary.
Pronunciation:/ ˈkəʊbɔːlt;ˈkəʊbɒlt bluːm /
noun
synonym
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Singular
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cobalt bloom
cobalt blooms
a reddish mineral consisting of hydrated cobalt arsenate in monoclinic crystalline form and used in colouring glass; usually found in veins bearing cobalt and arsenic