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

See also: smoggy

Type of: air pollution

• rusticism
• rusticity
• rustily
• rustiness
• rusting
• rustle
• rustler
• rustless
• rustling
• rustproof
• rustproofed
• rusty
• rusty blackbird
• rusty grackle
• rusty rig
• rusty woodsia
• rusty-brown
• rusty-red
• rut
• Ruta
• Ruta graveolens
• rutabaga
• rutabaga plant
• Rutaceae
• ruth