(n.) An oxide containing more oxygen than some other oxide of the same element. Formerly peroxides were regarded as the highest oxides. Cf. Per-, 2.

achromatize blanch bleach bleaching powder chlorine decolor decolorize dim discolor drain drain of color dull etiolate fade fume hydrochloric acid hydrogen peroxide lime nitrogen tetroxide oxalic acid pale sodium hypochlorite sour sulfur dioxide sulfuric acid tarnish tone down wash out white sour whiten