Brownian movement
[ brou-nee-uh n ]
/ ˈbraʊ ni ən /
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.
Also called
Brownian motion.
Origin of Brownian movement
1870–75;
Brown +
-ian
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
Medical definitions for brownian movement
Brownian movement
[ brŏu′nē-ən ]
n.
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