U`ni*sil"i*cate (?), n. [Uni- + silicate.] Min.
A salt of orthosilicic acid, H4SiO4; -- so called because the ratio of the oxygen atoms united to the basic metals and silicon respectively is 1:1; for example, Mg2SiO4 or 2MgO.SiO2.
© Webster 1913.
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