Brownian movement

[ brou-nee-uhn ]

/ ˈbraʊ ni ən /

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noun Physics.

the irregular motion of small particles suspended in a liquid or a gas, caused by the bombardment of the particles by molecules of the medium: first observed by Robert Brown in 1827.

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Also called Brownian motion.

Origin of Brownian movement

1870–75; Brown + -ian

Words nearby Brownian movement

brown goods, brown hackle, brown heart, brown hyena, Brownian motion, Brownian movement, brownie, Brownie Guide, Brownie Guider, Brownie point, brownie points

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use Brownian movement in a sentence

Any plans to grow her exercise movement must, she insists, remain “completely organic.”
How Taryn Toomey’s ‘The Class’ Became New York’s Latest Fitness Craze|Lizzie Crocker|January 9, 2015|DAILY BEAST
But the real mystery and injustice came from Brooke being essentially written out of the history of the civil rights movement.
Ed Brooke: The Senate's Civil Rights Pioneer and Prophet of a Post-Racial America|John Avlon|January 4, 2015|DAILY BEAST
Where the force generating those threats is a widespread, self-sustaining, and virulent social movement?
Cover-Ups and Concern Trolls: Actually, It's About Ethics in Suicide Journalism|Arthur Chu|January 3, 2015|DAILY BEAST
The feminist movement has encouraged women that they can initiate romantic relationships, too.
Random Hook-Ups or Dry Spells: Why Millennials Flunk College Dating|Ellie Schaack|January 1, 2015|DAILY BEAST

Even in the parts of the movement he does cover, some people and efforts are missing.
The Real Story Behind the Fight for Marriage Equality|E.J. Graff|December 30, 2014|DAILY BEAST
Selections for practice should be chosen which contain much variety of thought and feeling and are smooth in movement.
Expressive Voice Culture|Jessie Eldridge Southwick
Besides this fundamental or primary vibration, the movement divides itself into segments, or sections, of the entire length.
Expressive Voice Culture|Jessie Eldridge Southwick
The major-general kept him well informed of every movement of the enemy, and pointed out the dangerous isolation of Davout.
Napoleon's Marshals|R. P. Dunn-Pattison
The significance of time is determined by the movement of any selection, or, in other words, the rhythm.
Expressive Voice Culture|Jessie Eldridge Southwick
He sympathized with that movement which, during his childhood, culminated in the Cavite Conspiracy (vide p. 106).
The Philippine Islands|John Foreman

British Dictionary definitions for Brownian movement

Brownian movement

/ (ˈbraʊnɪən) /

noun

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

Word Origin for Brownian movement

C19: named after Robert Brown

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for Brownian movement

Brownian movement

[ brŏu′nē-ən ]

The random movement of microscopic particles suspended in a liquid or gas, caused by collisions with molecules of the surrounding medium.Brownian motion molecular movement pedesis