smognoun [ S or U ]
uk/smɒɡ/us/smɑːɡ/C1 a mixture of smoke, gases, and chemicals, especially in cities, that makes the atmosphere difficult to breathe and harmful for health:
Smog is a major problem in Athens.
As we flew into the airport, we could see a murky yellow smog hovering over the city.
Thesaurus: synonyms and related words
Environmental issues
- air pollution
- biodegrade
- biotic index
- carbon capture
- carbon credits
- carbon-neutral
- defoliant
- dumping ground
- eco-footprint
- ecology
- emission
- environmentally friendly
- exhaustible
- natural resources
- particulate
- photochemical smog
- preservation
- preservationist
- recycle
- reduce, reuse, recycle idiom
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Precipitation: clouds, dew, fog & steam
smoggy
adjective uk/ˈsmɒɡ.i/us/ˈsmɑː.ɡi/
Mexico City is one of the world's smoggiest capitals.