Definition of tellurium in English:


Syllabification: tel·lu·ri·um
Pronunciation: /təˈlo͝orēəm


The chemical element of atomic number 52, a brittle, shiny silvery-white semimetal resembling selenium and occurring mainly in small amounts in metallic sulfide ores. It is a semiconductor and is used in some electrical devices and in specialized alloys. (Symbol: Te)
More example sentences
  • Elements such as lead, tellurium, beryllium, chromium, phosphorus, and manganese have little or no effect on the corrosion resistance of coppers and binary copper-zinc alloys.
  • At higher temperatures, the metal does combine with many acids, the halogens, sulfur, selenium, and tellurium.
  • Lead, selenium, tellurium and sulfur are added to copper alloys to improve machinability.


early 19th century: modern Latin, from Latin tellus, tellur- 'earth', probably named in contrast to uranium.

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