aerosol
colloid of fine solid particles or liquid droplets, in air or another gas
Stratospheric sulfur aerosols
sulfur-rich particles in the stratosphere
secondary organic aerosol
class of chemical compounds
Gunshot residue
particles expelled from the muzzle of a gun
Cooking spray
Edible oil delivered as an aerosol
droplet nucleus
aerosols formed from the evaporation of respiratory droplets
fog
atmospheric phenomenon
dust
small particles in the air
smoke
mass of airborne particulates and gases
vanishing spray
marking substance in sports, typically used on the playing ground, in order to provide a temporary visual marker