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from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A jellylike substance, H2SiO3, produced when sodium silicate solution is acidified.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. any of a range of compounds, being hydrates of silica; they form silicates having complex polymeric structures

from the GNU version of the Collaborative International Dictionary of English

  • adj. an amorphous gelatinous substance, Si(HO)4, very unstable and easily dried to silica, but forming many stable salts; -- called also orthosilicic acid or normal silicic acid.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a jellylike substance (hydrated silica)


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