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1. Any of numerous compounds containing silicon, oxygen, and one or more metals; a salt of silicic acid.
2. Any of a large group of minerals, forming over 90 percent of the earth's crust, that consist of SiO2 or SiO4 groupings combined with one or more metals and sometimes hydrogen.
(Elements & Compounds) a salt or ester of silicic acid, esp one of a large number of usually insoluble salts with polymeric negative ions having a structure formed of tetrahedrons of SiO4 groups linked in rings, chains, sheets, or three dimensional frameworks. Silicates constitute a large proportion of the earth's minerals and are present in cement and glass
sil•i•cate(ˈsɪl ɪ kɪt, -ˌkeɪt)
1. any of the largest group of minerals, as quartz, olivine, pyroxene, amphibole, mica, clay, and feldspar, consisting of silicon and oxygen with one or more metals: the basic building block is the silica tetrahedron, SiO4.
2. any salt derived from the silicic acids or from silica.
1. Any of a large class of chemical compounds composed of silicon, oxygen, and at least one metal. Most rocks and minerals are silicates. Silicates are also one of the main components of bricks.
2. Any mineral containing the group SiO4 in its crystal lattice. Micas and feldspars are silicate minerals.