sil ‧ i ‧ con /ˈsɪlɪkən/ BrE AmE noun [uncountable]
[ Date: 1800-1900 ; Origin: silica ]
a chemical substance that exists as a solid or as a powder and is used to make glass, bricks, and parts for computers. It is a chemical ↑ element : symbol Si
sil ‧ i ‧ con /ˈsɪlɪkən/ BrE AmE noun [uncountable]
[ Date: 1800-1900 ; Origin: silica ]
a chemical substance that exists as a solid or as a powder and is used to make glass, bricks, and parts for computers. It is a chemical ↑ element : symbol Si
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012