aerosol
n. countablen. a container that releases a liquid as a fine spray when you press a button. It can also mean the tiny particles of liquid or solid that stay hanging in the air.
n. a substance enclosed under pressure and able to be released as a fine spray, typically by means of a propellant gas. Also refers to a suspension of fine solid particles or liquid droplets in air or another gas.
Shake the aerosol can before you use it.
Scientists are studying how volcanic aerosols in the atmosphere can reflect sunlight and cool the planet.
The transition from traditional aerosol propellants to more environmentally friendly alternatives was driven by international agreements aimed at protecting the ozone layer from harmful chemical reactions.
Often used as a modifier before another noun, such as 'aerosol spray' or 'aerosol can'.