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English definition of “smog”


noun [C/U]  /smɑɡ, smɔɡ/ us  
air pollution caused by smoke or chemicals mixing with fog: [U] We get a lot of smog downtown. [C] A poisonous smog killed 20 people.
adjective  /ˈsmɑɡ·i, ˈsmɔ·ɡi/ us  
a smoggy city/day
(Definition of smog from the Cambridge Academic Content Dictionary © Cambridge University Press)
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