Longman Dictionary of Contemporary English homepage

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

silica

noun
     
Related topics: Compounds, Geology
sil‧i‧ca [uncountable]
HCCHEG a chemical compound that exists naturally as sand, quartz, and flint, used in making glass

Dictionary pictures of the day
Do you know what each of these is called?
What is the word for picture 1? What is the word for picture 2? What is the word for picture 3? What is the word for picture 4?
Click on any of the pictures above to find out what it is called.

Explore our topic dictionary