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tellurium

[te-loo r-ee-uh m] /tɛˈlʊər i əm/
noun, Chemistry
1.
a rare, lustrous, brittle, crystalline, silver-white element resembling sulfur in its properties, and usually occurring in nature combined with gold, silver, or other metals of high atomic weight: used in the manufacture of alloys and as a coloring agent in glass and ceramics. Symbol: Te; atomic weight: 127.60; atomic number: 52; specific gravity: 6.24.
Origin of tellurium
< New Latin (1798), equivalent to Latin tellūr- (stem of tellūs) earth + -ium
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for tellurium
  • The leading thin film manufacturer uses a material that includes the rare element tellurium.
  • tellurium hexafluoride is a colorless gas with a repulsive odor.
  • When heated to high temperatures, it may emit toxic fluoride and tellurium fumes.
  • tellurium supply and demand have remained to continue as there are no large increases not have a major impact on demand.
British Dictionary definitions for tellurium

tellurium

/tɛˈlʊərɪəm/
noun
1.
a brittle silvery-white nonmetallic element occurring both uncombined and in combination with metals: used in alloys of lead and copper and as a semiconductor. Symbol: Te; atomic no: 52; atomic wt: 127.60; valency: 2, 4, or 6; relative density: 6.24; melting pt: 449.57±0.3°C; boiling pt: 988°C
Word Origin
C19: New Latin, from Latin tellūs the earth, formed by analogy with uranium
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for tellurium
n.

metallic element, named by German chemist and mineralogist Martin Heinrich Klaproth (1743-1817) from Latin tellus (genitive telluris) "earth" (see tellurian).

Online Etymology Dictionary, © 2010 Douglas Harper
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tellurium in Medicine

tellurium tel·lu·ri·um (tě-lur'ē-əm)
n.
Symbol Te
A brittle metallic element usually found in combination with gold and other metals, used to alloy stainless steel and lead, and, as bismuth telluride, in thermoelectric devices. Atomic number 52; atomic weight 127.60; melting point 449.5°C; boiling point 988°C; specific gravity 6.24; valence 2, 4, 6.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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tellurium in Science
tellurium
  (tě-lr'ē-əm)   
Symbol Te
A metalloid element that occurs as either a brittle, shiny, silvery-white crystal or a gray or brown powder. Small amounts of tellurium are used to improve the alloys of various metals. Atomic number 52; atomic weight 127.60; melting point 449.5°C; boiling point 989.8°C; specific gravity 6.24; valence 2, 4, 6. See Periodic Table.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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