say it: ER-uh-sahl
aerosol is a noun meaning "a cloud of solid or liquid particles in a gas". It carries 2 recorded senses.
a dispenser that holds a substance under pressure and that can release it as a fine spray (usually by means of a propellant gas)
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for aerosol come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.