SINCE 1828
Brownian motion
noun
Brown·ian motion
| \ ˈbrau̇-nē-ən-
\
\
Definition of Brownian motion
: a random movement of microscopic particles suspended in liquids or gases resulting from the impact of molecules of the surrounding medium
— called also Brownian movement
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More Definitions for Brownian motion
Brownian motion
noun
Brown·ian motion
| \ ˌbrau̇-nē-ən-
\
\
Medical Definition of Brownian motion
: a random movement of microscopic particles suspended in liquids or gases resulting from the impact of molecules of the fluid surrounding the particles
— called also Brownian movement
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