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Longman Dictionary of Contemporary English
silicate
noun
COLLOCATIONS FROM CORPUS
■ NOUN
mineral
▪ Many silicate minerals also have polymeric chain structures.
▪ These meteorites, called chondrites, are composed principally of silicate minerals, usually with some metallic iron and sulfides.
EXAMPLES FROM CORPUS
▪ Aluminium likes silicon: it has a greater affinity for inorganic silicate than for anything else.
▪ For one, Earth has an iron core and a silicate mantle.
▪ Groups of carbonate ions are arranged in sheets in a manner somewhat like that of the sheet silicates.
▪ It was at this time too that W. L. Bragg was beginning to unravel the complex structures of the crystalline silicates.
▪ The most difficult volatiles to dislodge will be those borne in compounds such as carbonates and hydroxy silicates.
▪ The precise pattern of sheet silicates, such as the micas, muscovite, and biotite, differ.
▪ These form a group of double silicates made up of varying pairs of minerals grading into each other without necessarily showing sharp boundaries.
▪ These interfering substances are adsorbed on to zeolite, silicic acid, or magnesium silicate.
The Collaborative International Dictionary
Silicate

Silicate \Sil"i*cate\, n.[Cf. F. silicate.] (Chem.) A salt of silicic acid.

Note: In mineralogical chemistry the silicates include; the unisilicates or orthosilicates, salts of orthosilicic acid; the bisilicates or metasilicates, salts of metasilicic acid; the polysilicates or acid silicates, salts of the polysilicic acids; the basic silicates or subsilicates, in which the equivalent of base is greater than would be required to neutralize the acid; and the hydrous silicates, including the zeolites and many hydrated decomposition products.

Douglas Harper's Etymology Dictionary
silicate

1811, from silica + -ate (3).

Wiktionary
silicate

n. (context chemistry English) Any salt of silica or of one of the silicic acids; any mineral composed of silicates

WordNet
silicate

n. a salt or ester derived from silicic acid

Wikipedia
Silicate

A silicate is a compound containing an anionic silicon compound. The great majority of the silicates are oxides, but hexafluorosilicate ([SiF]) and other anions are also included.

" Orthosilicate" is the anion or its compounds. Related to orthosilicate are families of anions (and their compounds) with the formula [SiO]. Important members are the cyclic and single chain silicates {[SiO]} and the sheet-forming silicates {[SiO]}.

Silicates constitute the majority of Earth's crust, as well as the other terrestrial planets, rocky moons, and asteroids. Sand, Portland cement, and thousands of minerals are examples of silicates. Silicate compounds, including the minerals, consist of silicate anions whose charge is balanced by various cations. Myriad silicate anions can exist, and each can form compounds with many different cations. Hence this class of compounds is very large. Both minerals and synthetic materials fit in this class.

Silicate (Space: Above and Beyond)

Silicates are a fictional race of androids created by humanity to be servants in the 1995–1996 television series Space: Above and Beyond.

Usage examples of "silicate".

She had found four species that adsorbed heavy metals, and two that absorbed dissolved silicates and fixed them into their rigid stalks.

Not the least curious part of this outcrop is the black thread of iron silicate which, broken in places, subtends it to the east: some specimens have geodes yielding brown powder, and venal cavities lined with botryoidal quartz of amethystine tinge.

Some marvel of internal chemistry allowed the animal to sprout cupric silicates from its skin.

Now he saw that where his scrabbling feet had kicked away the adhering granules and accumulated cupric silicates, something black and shiny lay underneath.

The smoke thus produced reduces the red ferric oxide to blue-green ferrous oxide, or to metallic iron, which combines with the silica present to form a fusible ferrous silicate.

Similarly, if to a silicate of lime we add oxide of iron, or soda, or even alumina, a fusible double silicate will be formed.

So, too, soda, which is a very strong base, may act prejudicially if it be in sufficient excess to set free notable quantities of lime and magnesia, which but for that excess would exist in combination as complex fusible silicates.

Noumeite and garnierite are hydrated silicates of nickel and magnesia.

Everything was UV with anxiety, and the new branch ind on the wall had to be shielded by a special silicate cup to prevent distortion.

Thariinye adjusted the assembler to produce other silicates such as tourmaline and iolite, orthoclase and microcline.

The silicate of potass was manufactured at a glass-house, by fusing equal parts of pearl-ash and sand.

Careful examination of the site disclosed silicate and magnetite dispersion matter and spherules of an intermediate type attributable to the Tunguska object.

The next half dozen headed straight for the center of the Associative, where a cylindrical conclave of walls housed the rare earths and mineral salts vital to silicate health and growth.

Brother Halga explained that the whole structure had been synthesized from glass and silicates extracted from the brecciated ice and bound together by diamond wire.

Intricately carved from deposits of hydrous silicate of magnesia, a mineral substance formed by nature from the remains of prehistoric sea creatures, these exquisite pipes were treasured by their owners, who were fond of comparing their abilities to season them.