smog

UK:*UK and possibly other pronunciationsUK and possibly other pronunciations/ˈsmɒg/US:USA pronunciation: IPA and respellingUSA pronunciation: IPA/smɑg, smɔg/ ,USA pronunciation: respelling(smog, smôg)


WordReference Random House Learner's Dictionary of American English © 2025
smog /smɑg, smɔg/USA pronunciation   n. [uncountable]
  1. Meteorologysmoke or other gases that pollute, combined with fog in an unhealthy or irritating mixture.
smog•gy, adj., -gi•er, -gi•est. 

WordReference Random House Unabridged Dictionary of American English © 2025
smog  (smog, smôg),USA pronunciation n. 
  1. Meteorologysmoke or other atmospheric pollutants combined with fog in an unhealthy or irritating mixture.
  2. MeteorologySee photochemical smog. 

v.t. 
  1. to cover or envelop with or as if with smog.
  • sm(oke) + (f)og1 1900–05
smog′less, adj. 

Collins Concise English Dictionary © HarperCollins Publishers::
smog / smɒɡ/
  1. a mixture of smoke, fog, and chemical fumes
Etymology: 20th Century: from sm( oke + f) og1ˈsmoggy
'smog' also found in these entries (note: many are not synonyms or translations):
antismog - fog - oxidant smog - ozone sickness - photochemical smog - smogbound - smoggy

Forum discussions with the word(s) "smog" in the title:


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