- 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.
- aerosol bomb.
- 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
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for aerosol
So Rey and Maupin sprayed the guards with their own Mace-type aerosol and took off running in a panic.The Mad Shooter of Paris Is a ‘Natural Born Killer’
November 21, 2013
One Christian man complained about “the idea that angels would forsake their divinity for aerosol cologne,” according to Jezebel.11 Ads Banned from TV
November 1, 2011
The aerosol mist of blood would have been visible through the scope.Exclusive Excerpt: MLK's Haunting Final Hours
April 24, 2010
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.Makers
Solvents and aerosol sprays also decrease the heart and respiratory rates, and impair judgment.What Works: Schools Without Drugs
United States Department of Education
- 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
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
Word Origin and History for aerosol
Online Etymology Dictionary, © 2010 Douglas Harper
- A gaseous suspension of fine solid or liquid particles.
- 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.
- 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.
- 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 © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.