/ Dictionary / Index O oxygen debt: Meaning and Definition of Find definitions for: ox'ygen debt" Pronunciation: [key] — Physiol. Physiol. the body's oxygen deficiency resulting from strenuous physical activity. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. oxygen cycle oxygenize Related Content Daily Word Quiz: morose Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language