/ Thesaurus / O Synonyms of oxygen deficit Find synonyms for: Noun1. oxygen deficit, deficit, shortage, shortfallusage: temporary oxygen shortage in cells resulting from strenuous exerciseWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: feline Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language