Meaning of TANTALUM in English

TANTALUM

/tan"tl euhm/ , n. Chem.

a gray, hard, rare, metallic element occurring in columbite and tantalite and usually associated with niobium: used, because of its resistance to corrosion by most acids, for chemical, dental, and surgical instruments and apparatus. Symbol: Ta; at. wt.: 180.948; at. no.: 73; sp. gr.: 16.6.

[ 1795-1805; ]

Random House Webster's Unabridged English dictionary.      Полный английский словарь Вебстер - Random House .