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silico-fluoride
silico-fluoride n. 
/ˌsɪlᵻkə(ʊ)ˈflɔːrʌɪd/, /ˌsɪləkoʊˈflɔˌraɪd/
Brit. /ˌsɪlᵻkə(ʊ)ˈflʊərʌɪd/
, /ˌsɪlᵻkə(ʊ)ˈflʊərʌɪd//ˌsɪlᵻkə(ʊ)ˈflɔːrʌɪd/U.S. /ˌsɪləkoʊˈflʊˌraɪd/
, /ˌsɪləkoʊˈflʊˌraɪd//ˌsɪləkoʊˈflɔˌraɪd/ΚΠ
1836–41 W. T. Brande Man. Chem. (ed. 5) 1032 Silico-fluoride of barium is gradually precipitated when silico-fluoric acid is mixed with chloride of barium.
1869 H. E. Roscoe Lessons Elem. Chem. (new ed.) xiv. 142 A compound of this substance with fluorine and potassium, potassium silico-fluoride.
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