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polyoxide
polyoxide n.
Brit. 
/ˌpɒlɪˈɒksʌɪd/
, /ˌpɒlɪˈɒksʌɪd/U.S. /ˌpɑliˈɑkˌsaɪd/
an oxide containing more than one oxygen atom in the molecule./ˌpɑliˈɑkˌsaɪd/ΚΠ
1905 Brit. Med. Jrnl. 1 July 25 He speaks very frequently of the Clayton process of fumigation with sulphur polyoxide.
1940 G. H. J. Adlam & L. S. Price Higher School Certificate Inorg. Chem. (ed. 2) xlv. 436 The oxides..which, like lead dioxide and manganese dioxide, do not yield hydrogen peroxide, are sometimes called polyoxides.
1996 Electronic Design (Nexis) 16 Dec. 79 The process supports polyoxide–silicon capacitors.
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