aerosol aerosol /ˈɛroʊˌsɒl/

noun

1. () A cloud of solid or liquid particles in a gas  ( aerosol )
   a cloud of solid or liquid particles in a gas
     The scientists studied the dispersion of the aerosol particles in the atmosphere.
   The scientists studied the dispersion of the aerosol particles in the atmosphere.
   
   
2. A dispenser that holds a substance under pressure and that can release it as a fine spray (usually by means of a propellant gas)  ( aerosol , aerosol bomb , aerosol can , aerosol container , spray can )
   a dispenser that holds a substance under pressure and that can release it as a fine spray (usually by means of a propellant gas)
    The paint came in a spray can for easy application
   The paint came in a spray can for easy application