<p><strong>Noun</strong></p><ul><li>Physical Chemistry</li><li>a system of colloidal particles dispersed in a gas and commonly formed as smoke, fog, mist, haze, or smog</li><li>a radioactive aerosol</li><li>aerosols in the stratosphere</li><li>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</li><li>an aerosol for cleaning ovens</li><li>a mist that lingers in the air, composed of fine particles (less than 5 micrometers in diameter) that form from the evaporation of respiratory droplets (5–10 micrometers in diameter) released into the air through talking, breathing, singing, whistling, coughing, sneezing, etc.</li><li>recommended precautions against virus-laden aerosols vary according to the type of virus</li><li>aerosol bomb</li></ul><p><strong>Adjective</strong></p><ul><li>of or containing a liquid or gas under pressure for dispensing as a spray or foam</li><li>a deodorant available in aerosol cans</li></ul>