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Intermediate Dictionary
       

smog

 
pronunciation:
smag [or] smawg
features:
Word Combinations (noun), Word Explorer
part of speech: noun
definition: a mixture of smoke and fog that is caused by moist air and human pollution.
Smog is a problem in many large cities.
similar words:
fume
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derivations: smoggy (adj.), smogless (adj.)
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See
  conservation