bismutocolumbite
An orthorhombic-dipyramidal black mineral containing bismuth, niobium, oxygen, and…An orthorhombic-dipyramidal black mineral containing bismuth, niobium, oxygen, and tantalum.
Meaning
1 senses(uncountable)An orthorhombic-dipyramidal black mineral containing bismuth, niobium, oxygen, and tantalum.
Origin
From bismuto- + columbite.From bismuto- + columbite.
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Lessons for this word
1 lessons- A1Countable and uncountable nouns — Because it can be uncountable