from the GNU version of the Collaborative International Dictionary of English
- adj. a double fluoride of hydrogen and silicon, H2F6Si, obtained in solution in water as a sour fuming liquid, and regarded as the type of the fluosilicates; -- called also silicofluoric acid, and hydrofluosilicic acid.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. an unstable poisonous corrosive acid known primarily in the form of its salts
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