columbite vs niobium
niobium vs columbitecolumbite and niobium both are nouns.
| Word | Noun | Adjective | Verb | Adverb |
|---|---|---|---|---|
| columbite | Yes | No | No | No |
| niobium | Yes | No | No | No |
| columbite (noun) | niobium (noun) |
|---|---|
| a black mineral that is an ore of niobium and tantalum | a soft grey ductile metallic element used in alloys; occurs in niobite; formerly called columbium |
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