aero·​sol | \ ˈer-ə-ˌsäl How to pronounce aerosol (audio) , -ˌsȯl How to pronounce aerosol (audio) \

Definition of aerosol

1 : a suspension of fine solid or liquid particles in gas smoke, fog, and mist are aerosols 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

In the simulation, reflective aerosols are injected at 15 and 30 degrees latitude in both the Northern and Southern Hemispheres, and the world makes no effort to cut its ever-increasing greenhouse gas emissions. Scott K. Johnson, Ars Technica, "Geoengineering could stop warming but comes with side of sea-level rise," 31 Oct. 2018 Almost anything that’s legal is fair game: Think clothes, shoes, full-size toiletries (except aerosols), hairstyling tools, sleep-apnea machines, snacks, appliances (like a blender for protein smoothies). Kelsey Ogletree, WSJ, "The Cure for Packing Anxiety—Or a Waste of Time and Money?," 23 Jan. 2019 What are hydrofluorocarbons? HFCs, found in aerosols and refrigerants, are a class of potent greenhouse gases that the Kigali amendment aims to reduce in the atmosphere. Dino Grandoni, Washington Post, "The Energy 202: EPA delays public-records requests to avoid questions about Scott Pruitt, Democrat says," 12 June 2018 For fine hair, aerosol dry shampoos are a great way to plump and thicken. Jenna Rennert, Vogue, "Why Your Dry Shampoo Isn’t Working—And 3 Easy Ways to Fix It," 23 Oct. 2018 The purple particles represent dust, and the blue particles represent sea salt aerosols. David Grossman, Popular Mechanics, "NASA's Global Aerosol Map Reveals the Long Reach of our Planet's Disasters," 27 Aug. 2018 That is maybe a little bit because of the phenomenon of global warming, but a great part of it is likely due to the fact that there are fewer sulfate aerosols in the atmosphere now than there were in the 1980s. Denise Chow /, NBC News, "Hurricane season is here. An extreme weather expert explains what's in store.," 3 June 2018 The aerosols launched into the lower atmosphere have been known to create colorful sunsets. Robert Krier,, "Kilauea eruption not expected to affect regions beyond Hawaii," 17 May 2018 In its complaint, the state claimed that Cox stores and warehouses were illegally discarding batteries, electronic devices, aerosols and other items classified as hazardous waste. Jennifer Van Grove,, "Cox settles hazardous waste, privacy suit with California for $3.3M," 24 May 2018

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.

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First Known Use of aerosol

1918, in the meaning defined at sense 2

History and Etymology for aerosol

aero- + -sol (in hydrosol)

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Statistics for aerosol

Last Updated

22 Mar 2019

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Time Traveler for aerosol

The first known use of aerosol was in 1918

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More Definitions for aerosol



English Language Learners Definition of aerosol

: 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


aero·​sol | \ ˈer-ə-ˌsäl How to pronounce aerosol (audio) , -ˌsȯl\

Kids Definition of aerosol

1 : a substance (as an insect repellent or medicine) that is released from a container as a spray of tiny solid or liquid particles in gas
2 : a container (as a can) that dispenses a substance as a spray


aero·​sol | \ ˈar-ə-ˌsäl How to pronounce aerosol (audio) , ˈer- How to pronounce aerosol (audio) , -ˌsȯl\

Medical Definition of aerosol

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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More from Merriam-Webster on aerosol

Rhyming Dictionary: Words that rhyme with aerosol

Spanish Central: Translation of aerosol

Nglish: Translation of aerosol for Spanish Speakers Encyclopedia article about aerosol

Comments on aerosol

What made you want to look up aerosol? Please tell us where you read or heard it (including the quote, if possible).


grandiloquent, ostentatious, or bombastic

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