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's Revised Unabridged Dictionary, © 1996, 1998 MICRA, Inc.
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