Try Our Apps


Avoid these words. Seriously.


[air-uh-sawl, -sol] /ˈɛər əˌsɔl, -ˌsɒl/
Physical Chemistry. a system of colloidal particles dispersed in a gas; smoke or fog.
a liquid substance, as a disinfectant or deodorant, sealed in a metal container under pressure with an inert gas or other activating agent and released as a spray or foam through a push-button valve or nozzle:
an aerosol for cleaning ovens.
of or containing a liquid or gas under pressure for dispensing as a spray or foam:
a deodorant available in aerosol cans.
Origin of aerosol
First recorded in 1920-25; aero- + sol4 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
Cite This Source
Examples from the Web for aerosol
Contemporary Examples
Historical Examples
  • A drop or so of the aerosol on the skin is enough, I understand.

    Damned If You Don't Gordon Randall Garrett
  • She flinched and misted a cloud of aerosol capsicum ahead of her.


    Cory Doctorow
  • Solvents and aerosol sprays also decrease the heart and respiratory rates, and impair judgment.

    What Works: Schools Without Drugs United States Department of Education
British Dictionary definitions for aerosol


a colloidal dispersion of solid or liquid particles in a gas; smoke or fog
a substance, such as a paint, polish, or insecticide, dispensed from a small metal container by a propellant under pressure
Also called air spray. such a substance together with its container
Word Origin
C20: from aero- + sol(ution)
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Cite This Source
Word Origin and History for aerosol

1919, from aero- "air" + first syllable in solution. A term in physics; modern commercial application is from 1940s.

Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
aerosol in Medicine

aerosol aer·o·sol (âr'ə-sôl')

  1. A gaseous suspension of fine solid or liquid particles.

  2. A substance, such as a drug containing therapeutically active ingredients, packaged under pressure with a gaseous propellant for release as a spray of fine particles.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
aerosol in Science

  1. A substance consisting of very fine particles of a liquid or solid suspended in a gas. Mist, which consists of very fine droplets of water in air, is an aerosol. Compare emulsion, foam.

  2. A liquid substance, such as paint, an insecticide, or a hair spray, packaged under pressure for use or application as a fine spray.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source

Word of the Day

Nearby words for aerosol

Difficulty index for aerosol

Most English speakers likely know this word

Word Value for aerosol

Scrabble Words With Friends