/ Dictionary / Index A autoxidation: Meaning and Definition of Find definitions for: au•tox•i•da•tion Pronunciation: (ô-tok"si-dā'shun), [key] — n. Chem. the oxidation of a compound by exposure to air. an oxidation reaction in which another substance, in addition to air and the compound being oxidized, must be present. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. autoworker autoxidation-reduction Related Content Daily Word Quiz: philtrum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language