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niobite |
Grep of noun niobite niobite Overview of noun niobite The noun niobite has 1 sense (no senses from tagged texts) 1. niobite, columbite -- (a black mineral that is an ore of niobium and tantalum) Overview of noun niobite The noun niobite has 1 sense (no senses from tagged texts) 1. niobite, columbite -- (a black mineral that is an ore of niobium and tantalum)
niobite definition