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1. WordNet® 3.0 (2006)
tellurium
    n 1: a brittle silver-white metalloid element that is related to
         selenium and sulfur; it is used in alloys and as a
         semiconductor; occurs mainly as tellurides in ores of
         copper and nickel and silver and gold [syn: tellurium,
         Te, atomic number 52]

2. The Collaborative International Dictionary of English v.0.48
Tellurium \Tel*lu"ri*um\, n. [NL., from L. tellus, -uris, the
   earth.] (Chem.)
   A rare nonmetallic element, analogous to sulphur and
   selenium, occasionally found native as a substance of a
   silver-white metallic luster, but usually combined with
   metals, as with gold and silver in the mineral sylvanite,
   with mercury in Coloradoite, etc. Symbol Te. Atomic weight
   125.2.
   [1913 Webster]

   Graphic tellurium. (Min.) See Sylvanite.

   Tellurium glance (Min.), nagyagite; -- called also black
      tellurium.
      [1913 Webster]

3. The Elements (07Nov00)
tellurium
Symbol: Te
Atomic number: 52
Atomic weight: 127.60
Silvery metalloid element of group 16. Eight natural isotopes, nine
radioactive isotopes. Used in semiconductors and to a degree in some
steels. Chemistry is similar to sulphur. Discovered in 1782 by Franz
Miller.


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