aerosol
noun
aero·sol ˈer-ə-ˌsäl 
-ˌsȯl
-ˌsȯl
1
: a suspension of fine solid or liquid particles in gas
Smoke, fog, and mist are aerosols.
airborne aerosol transmission of infective viral particles
also, aerosols plural : the fine particles of an aerosol
stratospheric aerosols
2
: a substance (such as an insecticide or medicine) dispensed from a pressurized container as an aerosol
also : the container for this
Examples of aerosol in a Sentence
Recent Examples on the Web
The satellite also hosts the European Union’s Copernicus Sentinel-4 mission, which aims to monitor key air quality trace gases and aerosols over Europe in support of the Copernicus Atmosphere Monitoring Service (CAMS) at high spatial resolution and with a fast revisit time. —
Richard Tribou, The Orlando Sentinel, 19 Apr. 2026 Gross said the Noltes’ contention that LivaNova’s problems with the aerosol emissions in their heater-cooler devices were unique was inaccurate. —Judy L. Thomas, Kansas City Star, 15 Apr. 2026 Paint, solvents, aerosol sprays, and the like should absolutely never be stored under the kitchen sink. —Ashlyn Needham, Southern Living, 12 Apr. 2026 Opt for non-aerosol sunscreen, since many festival venues ban aerosol sprays. —ABC News, 12 Apr. 2026 See All Example Sentences for aerosol
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Richard Tribou, The Orlando Sentinel, 19 Apr. 2026 Gross said the Noltes’ contention that LivaNova’s problems with the aerosol emissions in their heater-cooler devices were unique was inaccurate. —Judy L. Thomas, Kansas City Star, 15 Apr. 2026 Paint, solvents, aerosol sprays, and the like should absolutely never be stored under the kitchen sink. —Ashlyn Needham, Southern Living, 12 Apr. 2026 Opt for non-aerosol sunscreen, since many festival venues ban aerosol sprays. —ABC News, 12 Apr. 2026 See All Example Sentences for aerosol
Cite this Entry
“Aerosol.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.grautoblog.com/dictionary/aerosol. Accessed 24 Apr. 2026.
Copy CitationKids Definition
aerosol
noun
aero·sol ˈar-ə-ˌsäl ˈer-
ˈer-
-ˌsȯl
: a mixture of fine solid or liquid particles and gas
smoke and fog are aerosols
Medical Definition
aerosol
noun
aero·sol ˈar-ə-ˌsäl ˈer-
ˈer-
-ˌsȯl
1
: a suspension of fine solid or liquid particles in gas
smoke, fog, and mist are aerosols
2
: a substance (as an insecticide or medicine) dispensed from a pressurized container as an aerosol
also : the container for this
Love words? Need even more definitions?
Merriam-Webster unabridged
