n. Any of various minerals whose structure is formally that of a dual salt of boric and silicic acids.
the GNU version of the Collaborative International Dictionary of English
n. A double salt of boric and silicic acids, as in the natural minerals tourmaline, datolite, etc.
The Century Dictionary and Cyclopedia
n. A double salt, in which both boric and silicic acids are combined with a basic radical, as datolite, which is a borosilicate of calcium. Also called silicoborate.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. a salt of boric and silicic acids
Word Usage
"Immobilize waste in an insoluble matrix such as borosilicate glass or synthetic rock (fuel pellets are already in the form of a very stable ceramic: UO2);"