Longman Dictionary of Contemporary English homepage

Topic: GEOLOGY

Date: 1800-1900
Language: Modern Latin
Origin: Latin silex 'flint'

silica

 noun
     
sil‧i‧ca [uncountable]
HCCHEG a chemical compound that exists naturally as sand, quartz, and flint, used in making glass
Definition of silica from the Longman Dictionary of Contemporary English within
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