/ Dictionary / Index P peroxidize: Meaning and Definition of Find definitions for: per•ox•i•dize Pronunciation: (pu-rok'si-dīz"), [key] — -dized, -diz•ing. to convert into a peroxide, esp. of the highest oxidation potential. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. peroxide peroxy Related Content Daily Word Quiz: lunar Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language