tantalum
1Tantalum — (pronEng|ˈtæntələm) (formerly tantalium IPA|/tænˈtæliəm/) is a chemical element with the symbol Ta and atomic number 73. A rare, hard, blue grey, lustrous, transition metal, tantalum is highly corrosion resistant and occurs naturally in the… …
2Tantalum — Tan ta*lum, n. [NL. So named on account of the perplexity and difficulty encounterd by its discoverer (Ekeberg) in isolating it. See {Tantalus}.] (Chem.) A rare nonmetallic element found in certain minerals, as tantalite, samarskite, and… …
3Tantălum — Tantălum, so v.w. Tantal …
4tantalum — Symbol: Ta Atomic number: 73 Atomic weight: 180.948 Heavy blue grey metallic transition element. Ta 181 is a stable isotope, and Ta 180 is a radioactive isotope, with a half life in excess of 10^7 years. Used in surgery as it is unreactive. Forms …
5tantalum — [tan′tə ləm] n. [ModL: so named (1802) by its discoverer, Anders Gustaf Ekeberg (1767 1813), Swed chemist < Gr Tantalos, TANTALUS (its insolubility in most acids made extraction from the mineral tantalizing) + (I)UM] a hard, gray, ductile,… …
6tantalum — /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… …
7Tantalum — Eigenschaften …
8tantalum — tantalas statusas T sritis chemija apibrėžtis Cheminis elementas. simbolis( iai) Ta atitikmenys: lot. tantalum angl. tantalum rus. тантал …
9tantalum — noun [tɑ˧nˈʃaː˨lɔ˧m] a) A metallic chemical element (symbol Ta) with an atomic number of 73. b) tantalum See Also: coltan, Tantalean, Tantalic, tantalise, tantalize, tantalite, Tantalus …
10tantalum — A heavy metal of the vanadium group, atomic no. 73, atomic wt. 180.9479; used in surgical prostheses because of its noncorrosive properties. [G. mythical king of Lydia, Tantalus] * * * tan·ta·lum tant əl əm n a hard ductile gray white acid… …
