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Containing, resembling, relating to, or consisting of silica.

[From Latin siliceus, of flint, from silex, silic-, flint.]


(sɪˈlɪʃəs) or


1. (Geological Science) of, relating to, or containing abundant silica: siliceous deposits; a siliceous clay.
2. (Botany) (of plants) growing in or needing soil rich in silica


or si•li•cious

(səˈlɪʃ əs)

containing, consisting of, or resembling silica.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.siliceous - relating to or containing or resembling silica; "gritrock is siliceous sandstone"


[sɪˈlɪʃəs] ADJsilíceo


References in classic literature ?
Professor Ehrenberg [3] finds that this dust consists in great part of infusoria with siliceous shields, and of the siliceous tissue of plants.
What the exact system might be, if there was any, beyond the placing of them for a long period of years under the drip, I never discovered, but there they sat, iced over and preserved for ever by the siliceous fluid.
The swede-field in which she and her companion were set hacking was a stretch of a hundred odd acres, in one patch, on the highest ground of the farm, rising above stony lanchets or lynchets--the outcrop of siliceous veins in the chalk formation, composed of myriads of loose white flints in bulbous, cusped, and phallic shapes.
Founded in 1903, Hoffmann's businesses are mining, refining and world-wide distribution of Neuburg Siliceous Earth (a natural combination of corpuscular silica and lamellar kaolinite).
Historic exploration work in 2015 discovered a surface mineral showing where a grab sample of malachite and azurite stained siliceous andesite returned a value of 317 grams per ton silver Ag or 9.
Voluntary ex ante transparency notice: Supply and delivery of calcareous and siliceous materials and disposal of inert materials for water and sanitation services
SIVATE E610 Enhanced amine silane can be used as an adhesive primer for metallic and siliceous substrates and a corrosion inhibiting primer for paints and coatings on ferrous and non-ferrous substrates.
The pozzolans are a broad class of siliceous or siliceous and aluminous materials.
The sponge Chondrosia reniformis selectively engulfs siliceous particles that, when in crystalline form, become quickly dissolved in its ectosome.
For example, granite belongs to the moderately siliceous lithological class, with an approximate silica content and index of 73%, whereas basalt belongs to the mafic class with an approximate silica content and index of 48%.
In the new study, published online in the Journal of Archaeological Science, scientists analyzed siliceous scoria droplets -- porous granules associated with melting -- from four sites in Northern Syria dating back 10,000 to 13,000 years ago.