aerosol

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aerosol

(âr`əsōl, –sŏl): see colloidcolloid
[Gr.,=gluelike], a mixture in which one substance is divided into minute particles (called colloidal particles) and dispersed throughout a second substance. The mixture is also called a colloidal system, colloidal solution, or colloidal dispersion.
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aerosol

[′e·rə‚sȯl]
(chemistry)
A suspension of small particles in a gas; the particles may be solid or liquid or a mixture of both; aerosols are formed by the conversion of gases to particles, the disintegration of liquids or solids, or the suspension of powdered material.
(meteorology)
A small droplet or particle suspended in the atmosphere and formed from both natural and anthropogenic sources.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

aerosol

a colloidal dispersion of solid or liquid particles in a gas; smoke or fog
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005