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
Liquids can be anything from liquids, gels, and aerosols, and food products like soft cheese and salsa.
—
Mariyam Muhammad, The Enquirer, 14 July 2025
Volcanic eruptions release tiny particles called aerosols, which can temporarily cool the planet.
—Pranjal Malewar, New Atlas, 11 July 2025
Nearby is the Earth Information Center with a four-minute film and electronic displays, including the Science on a Sphere, a floating globe that reveals data on topics such as ocean temperatures, aerosols in the air and fires, as seen from space.
—Dewayne Bevil, The Orlando Sentinel, 11 July 2025
This is thought to be because of changes in air pollutants known as aerosols as well as shifts in weather patterns that may also be caused by climate change.
—Andrew Freedman, CNN Money, 23 June 2025
See All Example Sentences for aerosol
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show current usage.
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Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
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Mariyam Muhammad, The Enquirer, 14 July 2025
Volcanic eruptions release tiny particles called aerosols, which can temporarily cool the planet.
—Pranjal Malewar, New Atlas, 11 July 2025
Nearby is the Earth Information Center with a four-minute film and electronic displays, including the Science on a Sphere, a floating globe that reveals data on topics such as ocean temperatures, aerosols in the air and fires, as seen from space.
—Dewayne Bevil, The Orlando Sentinel, 11 July 2025
This is thought to be because of changes in air pollutants known as aerosols as well as shifts in weather patterns that may also be caused by climate change.
—Andrew Freedman, CNN Money, 23 June 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 19 Jul. 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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