Definition of tellurium in English:



(also Te)
  • 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.

    ‘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.’
    • ‘Like selenium, tellurium is used in electronic devices.’
    • ‘Lead, tellurium and selenium are added to copper and its alloys to improve machinability.’



/təˈlo͝orēəm/ /təˈlʊriəm/


Early 19th century modern Latin, from Latin tellus, tellur- ‘earth’, probably named in contrast to uranium.