Word | Noun | Adjective | Verb | Adverb |
---|---|---|---|---|
columbite | Yes | No | No | No |
tantalum | Yes | No | No | No |
columbite (noun) | tantalum (noun) |
---|---|
a black mineral that is an ore of niobium and tantalum | a hard grey lustrous metallic element that is highly resistant to corrosion; occurs in niobite and fergusonite and tantalite |