Hypertext Webster Gateway: "dioxide"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Dioxide \Di*ox"ide\ (?; 104), n. [Pref. di- + oxide.] (Chem.)
(a) An oxide containing two atoms of oxygen in each molecule;
binoxide.
(b) An oxide containing but one atom or equivalent of oxygen
to two of a metal; a suboxide. [Obs.]
{Carbon dioxide}. See {Carbonic acid}, under {Carbonic}.
From WordNet (r) 1.7 (wn)
dioxide
n : an oxide containing two atoms of oxygen in the molecule
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