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Brownian motion

   Also found in: Medical, Encyclopedia, Wikipedia, Hutchinson 0.04 sec.
Brown·i·an motion  (broun-n)
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.]
Brownian motion
Noun
Physics the random movement of particles in a fluid, caused by continuous bombardment from molecules of the fluid [after Robert Brown, physicist]
Brownian motion  (broun-n)
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. This movement is named for its identifier, Scottish botanist Robert Brown (1773-1858). See also kinetic theory.
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.Brownian motionBrownian motion - the random motion of small particles suspended in a gas or liquid
Brownian movement, pedesis
motion, movement - a natural event that involves a change in the position or location of something


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A dancer who brought a kinetic zest to every role, she has always had an affinity with Brownian motion.
Trisha Brown Dance Company by Perron, Wendy / Dance Magazine
The phenomenon that would eventually become known as Brownian motion defied some of Newton's deterministic laws of matter.
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The laser channel does not assume sphericity and is not subject to effects of optical and physical properties of particles or medium (such as refractive indices, absorption, surface texture, porosity, electrical conductivity, viscosity variations, Brownian motion or thermal convection).
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