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Definition of Silica
1. Noun. A white or colorless vitreous insoluble solid (SiO2); various forms occur widely in the earth's crust as quartz or cristobalite or tridymite or lechatelierite.
Exact synonyms: Silicon Dioxide, Silicon Oxide
Substance meronyms: Cristobalite, Quartz, Crystal, Lechatelierite, Quartz, Quartz Glass, Vitreous Silica, Tridymite
Specialized synonyms: Chert, Flint, Silex
Generic synonyms: Oxide
Derivative terms: Siliceous, Silicious
Substance meronyms: Cristobalite, Quartz, Crystal, Lechatelierite, Quartz, Quartz Glass, Vitreous Silica, Tridymite
Specialized synonyms: Chert, Flint, Silex
Generic synonyms: Oxide
Derivative terms: Siliceous, Silicious
Definition of Silica
1. n. Silicon dioxide, SiO&?;. It constitutes ordinary quartz (also opal and tridymite), and is artifically prepared as a very fine, white, tasteless, inodorous powder.
Definition of Silica
1. Noun. Silicon dioxide. ¹
2. Noun. Any of the silica group of the silicate minerals. ¹
¹ Source: wiktionary.com
Definition of Silica
1. a form of silicon [n -S]
Medical Definition of Silica
1. Fine particulate dust from quartz rock that is known to cause a progressive lung injury over long-term. See: pneumoconiosis. (27 Sep 1997)
Lexicographical Neighbors of Silica
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