Brownian movement


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Brownian movement

(ˈbraʊnɪən) or

Brownian motion

n
(General Physics) random movement of microscopic particles suspended in a fluid, caused by bombardment of the particles by molecules of the fluid. First observed in 1827, it provided strong evidence in support of the kinetic theory of molecules
[C19: named after Robert Brown]

Brownian movement

The random motion of microscopic particles suspended in a gas or liquid.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.Brownian movement - the random motion of small particles suspended in a gas or liquidBrownian movement - 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
References in periodicals archive ?
Students observe the effect of temperature change on Brownian movement at the molecular level.
shapes of corresponding histograms, constructed by results of measurements of various nature processes --from electronic device noises, rates of chemical and biochemical reactions, and Brownian movement to radioactive decay of various types--are determined by cosmophysical factors: diurnal and circumsolar rotations of the Earth.
As for the soiling of surfaces, dirt particles are literally everywhere, spread around by wind and rain, or, in the case of the finest particles by Brownian movement.