Brownian motion

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Brown·i·an motion

 (brou′nē-ən)
n.
The random movement of microscopic particles suspended in a liquid or gas, caused by collisions with molecules of the surrounding medium. Also called Brownian movement.

[After Robert Brown.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Brown′i•an mo′tion

(ˈbraʊ ni ən)
n.
the random motion of small colloidal particles suspended in a liquid or gas medium, caused by the collision of the medium's molecules with the particles. Also called Brown′ian move′ment.
[1870–75; after Robert Brown (1773–1858), Scottish botanist, who described it in 1827]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

Brown·i·an motion

(brou′nē-ən)
The random movement of microscopic particles suspended in a liquid or gas, caused by collisions between these particles and the molecules of the liquid or gas.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.Brownian motion - the random motion of small particles suspended in a gas or liquidBrownian motion - the random motion of small particles suspended in a gas or liquid
motion, movement - a natural event that involves a change in the position or location of something
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