The past tense of Deoxidize is deoxidized.
verb. to remove oxygen from a compound, or cause to react with hydrogen or form a hydride, or to undergo an increase in the number of electrons.
1. Verb, base form These agents will deoxidize the copper. 2. Verb, non-3rd person singular present It contains hundreds of minerals, amino acids, vitamins and enzymes that deoxidize and help heal ailments.