Definition of silicon in English:


Syllabification: sil·i·con
Pronunciation: /ˈsilikən
, ˈsiləˌkän


The chemical element of atomic number 14, a nonmetal with semiconducting properties, used in making electronic circuits. Pure silicon exists in a shiny dark gray crystalline form and as an amorphous powder. (Symbol: Si)
More example sentences
  • As silicon doesn't conduct electricity, impurities are added so it becomes a conductor.
  • Silicosis is caused when silicon, fine particles of rock, enters the lungs and cuts lung tissue.
  • The most common technology for harvesting energy from sunlight is the photovoltaic cell based on silicon.


early 19th century: alteration of earlier silicium, from Latin silex, silic- 'flint', on the pattern of carbon and boron.

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