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arsenio-sulphide
arsenio-sulphide n. 
/ɑːˌsɛnɪə(ʊ)ˈsʌlfʌɪd/, /ɑrˌsɛnioʊˈsəlˌfaɪd/ rare any compound which is both an arsenide and a sulphide; = arsenosulphide n. at arseno- comb. form 2.
Brit. /ɑːˌsiːnɪə(ʊ)ˈsʌlfʌɪd/
, /ɑːˌsiːnɪə(ʊ)ˈsʌlfʌɪd//ɑːˌsɛnɪə(ʊ)ˈsʌlfʌɪd/U.S. /ɑrˌsinioʊˈsəlˌfaɪd/
, /ɑrˌsinioʊˈsəlˌfaɪd//ɑrˌsɛnioʊˈsəlˌfaɪd/ΚΠ
1851 W. Gregory Outl. Chem. (new ed.) i. 248 Thus sesquisulphide of arsenic combines with sulphide of potassium, forming the arsenio-sulphide [earlier edd. arsenio-sulphuret] of potassium.
1937 Mine & Quarry Engin. 2 223/1 Simple flotation [sc. for separating an ore from its gangue] is applied to..the arsenio-sulphides and antimonio-sulphides of these metals.
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