1. Droplets of water vapour suspended in the air near the ground
   "The thick fog reduced visibility to just a few meters"
    
2. An atmosphere in which visibility is reduced because of a cloud of some substance
   "The morning fog made driving dangerous";
   - fogginess, murk, murkiness, mirk [archaic]
    
3. Confusion characterized by lack of clarity
   "The lack of sleep left her in a mental fog";
   - daze, haze
    
4. (photography) cloudiness on a photographic image
   "The lens condensation caused fog on several of the photos";
   - fogging

1. Make less visible or unclear
   "The stars are fogged by the clouds";
   - obscure, befog, becloud, obnubilate, haze over, cloud, mist

Derived forms: fogs, fogging, fogged

Type of: aerosol, atmosphere, atmospheric state, conceal, confusedness, confusion, disarray, hide, mental confusion, muddiness

Encyclopedia: Fog