tantalum
English Thesaurus
1. a hard grey lustrous metallic element that is highly resistant to corrosion; occurs in niobite and fergusonite and tantalite (noun.substance)
| hypernym | : | metal, metallic element, |
| definition | : | any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc. (noun.substance) |
| substance meronym | : | fergusonite, |
| definition | : | a dark mineral consisting of oxides of yttrium and erbium and tantalum and other minerals (noun.substance) |
| substance meronym | : | columbite, niobite, |
| definition | : | a black mineral that is an ore of niobium and tantalum (noun.substance) |
| substance meronym | : | tantalite, |
| definition | : | a mineral consisting of tantalum oxide of iron and manganese that occurs with niobite or in coarse granite; an ore of tantalum (noun.substance) |
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