Hypertext Webster Gateway: "borosilicate"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Borosilicate \Bo"ro*sil"i*cate\, n. [Boron + silicate.] (Chem.)
A double salt of boric and silicic acids, as in the natural
minerals tourmaline, datolite, etc.
From WordNet (r) 1.7 (wn)
borosilicate
n : a salt of boric and silicic acids
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