bo·ro·sil·i·cate /ˌboroˈsɪləˌket, ˌbɔr, ˈsɪlɪkət/
硼矽酸鹽; 矽酸硼
Bo·ro·sil·i·cate n. Chem. A double salt of boric and silicic acids, as in the natural minerals tourmaline, datolite, etc.
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borosilicate
n : a salt of boric and silicic acids