a system of colloidal particles dispersed in a gas; smoke or fog.
a liquid substance, as a disinfectant or deodorant, sealed in a metal container under pressure with an inert gas or other activating agent and released as a spray or foam through a push-button valve or nozzle: an aerosol for cleaning ovens.
See
—adj.
of or containing a liquid or gas under pressure for dispensing as a spray or foam: a deodorant available in aerosol cans.