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
And soap and water are best for cleaning, rather than aerosols or chemical cleaners that may interact with some of the chemicals in ash.
—
Jen Christensen, CNN, 13 Jan. 2025
Follow the rules for liquids, gels and aerosols, limiting these to 3.4 ounces in carry-on bags.
—Marisa Garcia, Forbes, 23 Nov. 2024
While this means cleaner air, fewer atmospheric aerosols also results in a greater amount of sunlight reaching the Earth's surface creating a heating effect.
—Matthew Glasser, ABC News, 9 Jan. 2025
Other properties of the HA protein would need to change for the virus to be able spread by aerosols — tiny, infected airborne particles.
—Katherine Hignett, Forbes, 6 Dec. 2024
See all Example Sentences for aerosol 
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Jen Christensen, CNN, 13 Jan. 2025
Follow the rules for liquids, gels and aerosols, limiting these to 3.4 ounces in carry-on bags.
—Marisa Garcia, Forbes, 23 Nov. 2024
While this means cleaner air, fewer atmospheric aerosols also results in a greater amount of sunlight reaching the Earth's surface creating a heating effect.
—Matthew Glasser, ABC News, 9 Jan. 2025
Other properties of the HA protein would need to change for the virus to be able spread by aerosols — tiny, infected airborne particles.
—Katherine Hignett, Forbes, 6 Dec. 2024
See all Example Sentences for aerosol
Dictionary Entries Near aerosol
Cite this Entry
“Aerosol.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/aerosol. Accessed 2 Feb. 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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