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
Ammonia can increase cloud formation by reacting with gases containing sulphur to increase the creation of aerosols — particles which give water vapor a surface to condense upon, leading to cloud formation.
—
Doyle Rice, USA Today, 24 May 2025
In other words, the data PACE has collected is improving our understanding about how Earth's atmosphere and oceans exchange carbon dioxide and reveal how aerosols might fuel phytoplankton growth in the surface ocean.
—Robert Z. Pearlman, Space.com, 15 May 2025
Sulfur dioxide is a key aerosol emitted from burning fossil fuels.
—Lee Habeeb, MSNBC Newsweek, 3 Apr. 2025
Spray: Spray foundations are essentially just liquids in an aerosol can.
—Bestreviews, Mercury News, 9 May 2025
See All Example Sentences for aerosol
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show current usage.
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Doyle Rice, USA Today, 24 May 2025
In other words, the data PACE has collected is improving our understanding about how Earth's atmosphere and oceans exchange carbon dioxide and reveal how aerosols might fuel phytoplankton growth in the surface ocean.
—Robert Z. Pearlman, Space.com, 15 May 2025
Sulfur dioxide is a key aerosol emitted from burning fossil fuels.
—Lee Habeeb, MSNBC Newsweek, 3 Apr. 2025
Spray: Spray foundations are essentially just liquids in an aerosol can.
—Bestreviews, Mercury News, 9 May 2025
See All Example Sentences for aerosol
Cite this Entry
“Aerosol.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/aerosol. Accessed 3 Jun. 2025.
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
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