/ Dictionary / Index O one-lung: Meaning and Definition of Find definitions for: one-lung Pronunciation: (wun'lung"), [key] — adj. having or equipped with only one lung. (of an engine, automobile, etc.) having only one cylinder. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. one-liner one-lunger Related Content Daily Word Quiz: cautious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language