Definition of aerosol
- smoke, fog, and mist are aerosols
- stratospheric aerosols
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'aerosol.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
: a substance (such as hair spray or medicine) that is kept in a container under pressure and that is released as a fine spray when a button is pressed
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