Definition of Brownian movement

1. Noun. The random motion of small particles suspended in a gas or liquid.

Exact synonyms: Brownian Motion, Pedesis
Generic synonyms: Motion, Movement

Definition of Brownian movement

1. Noun. Random motion of particles suspended in a fluid, arising from those particles being struck by individual molecules of the fluid. ¹

¹ Source:

Medical Definition of Brownian movement

1. Erratic, nondirectional, zigzag movement observed by ultramicroscope in certain colloidal solutions and by microscope in suspensions of light particulate matter that results from the jostling or bumping of the larger particles by the molecules in the suspending medium which are regarded as being in continuous motion. Synonym: brownian motion, brownian-Zsigmondy movement, molecular movement, pedesis. (05 Mar 2000)

Brownian Movement Pictures

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Lexicographical Neighbors of Brownian Movement

browned off
browned out
brownian-Zsigmondy movement
brownian movement (current term)
brownie mix
browning out
brownish yellow

Literary usage of Brownian movement

Below you will find example usage of this term as found in modern and/or classical literature:

1. The Elements of Physical Chemistry by Harry Clary Jones (1915)
"PERRIN'S STUDY OF THE brownian movement Brown 1 found in 1828, ... The cause of the Brownian. movement was for a long time not understood. ..."

2. A Handbook of Colloid-chemistry: The Recognition of Colloids, the Theory of by Carl Wilhelm Wolfgang Ostwald, Wolfgang Ostwald, Emil Hatschek (1919)
"When properly placed "the molecular movement (brownian movement) of the resin particles ... Directions for observing brownian movement with the aid of a ..."

3. Chemistry in the Service of Man by Alexander Findlay (1916)
"In this brownian movement, as it is called, the full significance of which has only recently been grasped—it had, indeed, been observed long ago by the ..."

4. Physiology and Biochemistry in Modern Medicine by John James Rickard Macleod (1922)
"brownian movement.—Like the particles in fine mechanical suspensions, ... Indeed the existence of the brownian movement indicates that such diffusion must ..."

5. The Nature of Solution by Harry Clary Jones, Ebenezer Emmet Reed (1917)
"Cause of the brownian movement. — So much for some of the facts pertaining to the brownian movement. The important question still remains, what causes these ..."

6. An Introduction to the Principles of Physical Chemistry from the Standpoint by Edward Wight Washburn (1921)
"The cause of this irregular motion, called from its discoverer the Brownian Movement, was not suspected until a number of years later, however. ..."

7. Atoms by M. Jean Perrin, Jean Baptiste Perrin (1916)
"THE brownian movement.—Direct perception of the molecules in agitation is not possible, for the same reason that the motion of the waves is not noticed by ..."

8. The Nature of Matter and Electricity: An Ouline of Modern Views by Daniel Frost Comstock, Leonard Thompson Troland (1917)
"Section 21 THE brownian movement AND ITS MEASUREMENT Perrin's Experiments. — The work upon the physics of the brownian movement is still new. ..."

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