niobite
Meaning, Definition & Usage
Dictionary
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noun
a black mineral that is an ore of niobium and tantalum
columbite
.
WordNet
Ni"o*bite
noun
Definitions
(Min.)
Same as
Columbite
.
Webster 1913
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ninurta
ninut
niobate
niobe
niobic
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niobium
niobrara
niopo
nip
nipa
