Definition of aerosol
1 : a suspension of fine solid or liquid particles in gas
Smoke, fog, and mist are aerosols. airborne aerosol transmission of infective viral particles also aerosols plural : the fine particles of an aerosol stratospheric aerosols
2 : a substance (such as an insecticide or medicine) dispensed from a pressurized container as an aerosol also : the container for this
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Time Traveler for aerosol
The first known use of aerosol was in 1923
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