Etymology
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aerosol (n.)

1919, from aero- "air" + first syllable in solution, in the chemical sense. A term in physics; modern commercial application is from 1940s.

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Definitions of aerosol

aerosol (n.)
a cloud of solid or liquid particles in a gas;
aerosol (n.)
a dispenser that holds a substance under pressure and that can release it as a fine spray (usually by means of a propellant gas);
Synonyms: aerosol container / aerosol can / aerosol bomb / spray can
From wordnet.princeton.edu