Dictionary.com
definitions
  • synonyms

Brownian movement

[brou-nee-uh n]
See more synonyms on Thesaurus.com
noun Physics.
  1. 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.

Origin of Brownian movement

1870–75; Brown + -ian
Also called Brownian motion.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for brownian movement

Brownian movement

noun
  1. 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

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

Word Origin and History for brownian movement

Brownian movement

n.

1871, for Scottish scientist Dr. Robert Brown (1773-1858), who first described it.

Online Etymology Dictionary, © 2010 Douglas Harper

brownian movement in Medicine

Brownian movement

([object Object])
n.
  1. 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
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

  • About
  • Cookies, Terms, & Privacy
© 2018 Dictionary.com, LLC.