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siliceous |
Also found in: Dictionary/thesaurus, Medical, Wikipedia, Hutchinson | 0.04 sec. |
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siliceous [sə′lish·əs] (petrology) Describing a rock containing abundant silica, especially free silica. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Professor Ehrenberg [3] finds that this dust consists in great part of infusoria with siliceous shields, and of the siliceous tissue of plants. 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. 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. |
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