silicate

n. any of a large number of mineral compounds which form over 90 percent of the rock-forming minerals of the earth's crust (Mineralogy); salt of silicic acid (Chemistry)

For the artificial intelligence androids of the 1990s science fiction series , see Silicate (AI) In chemistry, a silicate is a compound containing an anion in which one or more central silicon atoms are surrounded by electronegative ligands. This definition is broad enough to include species such as hexafluorosilicate ("fluorosilicate"), [SiF6]2−, but the silicate species that are encountered most often consist of silicon with oxygen as the ligand. Silicate anions, with a negative net electrical charge, must have that charge balanced by other cations to make an electrically neutral compound.
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Noun
1. a salt or ester derived from silicic acid
(hypernym) salt

n. silicate, any of a large number of mineral compounds which form over 90 percent of the rock-forming minerals of the earth's crust (Mineralogy); salt of silicic acid (Chemistry)

(n.)
A salt of silicic acid.