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columbium

columbium (kəlŭmˈbēəm) [key], symbol Cb, former name of the chemical element niobium.

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columbium: meaning and definitions - columbium: Definition and Pronunciation
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euxenite: meaning and definitions - euxenite: Definition and Pronunciation
CB: meaning and definitions - CB: Definition and Pronunciation
Cb - Cb Cb, formerly the symbol for the element columbium, now called niobium (Nb).

See more Encyclopedia articles on: Compounds and Elements

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