D defs.my
Entry 1 sense Webster, 1913

Unisilicate

· U·ni·sil·i·cate · IPA
01 n. A salt of orthosilicic acid, H4SiO4; -- so called because the ratio of the oxygen atoms united to the basic metals and silicon respectively…
  1. 1.
    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.(Min.)