columbite 1
rzeczownikdomena: substancja
Princeton WordNet [ver.3.1]
Definicja
a black mineral that is an ore of niobium and tantalum
Synonimy
- niobite 1
a black mineral that is an ore of niobium and tantalum
a black mineral that is an ore of niobium and tantalum
a black mineral that is an ore of niobium and tantalum
