Definitions for tantalumˈtæn tl əm

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Random House Webster's College Dictionary

tan•ta•lumˈtæn tl əm(n.)

  1. a hard, gray, rare metallic element that resists corrosion by most acids: used for chemical, dental, and surgical instruments.

    Category: Chemistry

    Ref: Symbol: Ta; 5

Origin of tantalum:

< Sw (1802); after Tantalus , alluding to the nonabsorption of acids

Princeton's WordNet

  1. tantalum, Ta, atomic number 73(noun)

    a hard grey lustrous metallic element that is highly resistant to corrosion; occurs in niobite and fergusonite and tantalite

Wiktionary

  1. tantalum(Noun)

    A metallic chemical element (symbol Ta) with an atomic number of 73.

Webster Dictionary

  1. Tantalum(noun)

    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

U.S. National Library of Medicine

  1. Tantalum

    Tantalum. A rare metallic element, atomic number 73, atomic weight 180.948, symbol Ta. It is a noncorrosive and malleable metal that has been used for plates or disks to replace cranial defects, for wire sutures, and for making prosthetic devices. (Dorland, 28th ed)


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