Webster dictionary was developed by Noah Webster in the beginning of 19th century. On this website, you can find definition for silica from the 1913 edition of Webster's Revised Unabridged Dictionary. Define silica using one of the most comprehensive free online dictionaries on the web.

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silica
Part of Speech: noun
Results: 1
1. Silicon dioxide, SiO. It constitutes ordinary quartz ( also opal and tridymite), and is artifically prepared as a very fine, white, tasteless, inodorous powder.
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