1. Air pollution by a mixture of smoke and fog
   - smog

See also: smoggy

Type of: air pollution

• Asiatic sweetleaf
• aside
• Asilidae
• Asimina
• Asimina triloba
• Asimov
• Asin
• asinine
• asininity
• Asio
• Asio otus
• ask
• ask for
• ask for it
• ask for trouble
• ask in
• Ask Jeeves
• ask out
• ask over
• ask round
• askance
• askant
• asker
• askew
• asking