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The Collaborative International Dictionary
binoxide

Deutoxide \Deu*tox"ide\ (?; 104), n. [Pref. deut- + oxide.] (Chem.) A compound containing in the molecule two atoms of oxygen united with some other element or radical; -- usually called dioxide, or less frequently, binoxide. [1913 Webster] ||

Wiktionary
binoxide

n. (archaic form of dioxide English)