- 1. n. A rare nonmetallic element found in certain minerals, as tantalite, samarskite, and fergusonite, and isolated as a dark powder which becomes steel-gray by burnishing. Symbol Ta. Atomic weight 182.0. Formerly called also tantalium. Source: opted
- 2. n. a hard grey lustrous metallic element that is highly resistant to corrosion; occurs in niobite and fergusonite and tantalite Source: wordnet
- 3. A rare nonmetallic element found in certain minerals, as tantalite, samarskite, and fergusonite, and isolated as a dark powder which becomes steel-gray by burnishing. Symbol Ta. Atomic weight 182.0. Formerly called also tantalium. Source: webster
- 4. A rare nonmetallic element found in certain minerals, astantalite, samarskite, and fergusonite, and isolated as a dark powderwhich becomes steel-gray by burnishing. Symbol Ta. Atomic weight182.0. Formerly called also tantalium. Source: adambom
- 5. n:100 n. a hard grey lustrous metallic element that is highly resistant to corrosion; occurs in niobite and fergusonite and tantalite Source: ecdict
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