• noun the alteration of the state of soil or rock through the action of natural agents such as rain, sun, frost or wind or by artificially produced pollutants

Cars & Driving

  • noun the physical disintegration and chemical decomposition of materials on exposure to atmospheric agents


  • Changes in color, texture, strength, chemical composition, or other properties of a natural or artificial material due to the actionof the weather.
  • The mechanical or chemical disintegration and discoloration of the surface of wood, caused by exposure to light, the action of dust and sand carried by the wind, and the alternate shrinking and swelling of the surface fibers due to continual variation in temperature and moisture content brought on by changes in the weather.