- 1. n. A supposed new metal found in columbite, afterwards shown to be identical with columbium, or niobium. Source: opted
- 2. A supposed new metal found in columbite, afterwards shown to be identical with columbium, or niobium. Source: webster
- 3. A supposed new metal found in columbite, afterwards shown to beidentical with columbium, or niobium. Source: adambom
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pelopium
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