/ Dictionary / Index S smog: Meaning and Definition of Find definitions for: smog Pronunciation: (smog, smôg), [key] — n. smoke or other atmospheric pollutants combined with fog in an unhealthy or irritating mixture. See —v.t. to cover or envelop with or as if with smog. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: smog (Thesaurus) smock mill smogbound Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language