The Collaborative International Dictionary of English v.0.48:

Hyperoxygenated \Hy`per*ox"y*gen*a`ted\, Hyperoxygenized
\Hy`per*ox"y*gen*ized\, a. (Chem.)
   Combined with a relatively large amount of oxygen; -- said of
   higher oxides. [Obs.]
   [1913 Webster]