Century Dictionary and Cyclopedia
- n. The name given by H. Rose to a supposed new chemical element which he believed that he had detected in the mineral columbite from Bavaria. He afterward recognized its identity with niobium.
GNU Webster's 1913
- n. (Chem.) A supposed new metal found in columbite, afterwards shown to be identical with columbium, or niobium.
- Pelops + -ium (Wiktionary)
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