columbite columbine • columbium · · · Info · Definitions · Synonyms · Characters · · columbite · · Text Latin · · Script 9 · · Length Definitions · · · (noun) a black mineral that is an ore of niobium and tantalum. Synonyms: niobite. · · Noun Definition 1 Synonyms · · · niobite · · Synonym 1 Characters · · b latin small letter b U+0062 c latin small letter c U+0063 e latin small letter e U+0065 i latin small letter i U+0069 l latin small letter l U+006C m latin small letter m U+006D o latin small letter o U+006F t latin small letter t U+0074 u latin small letter u U+0075