Einstein diffusion equation

Einstein diffusion equation

[′īn‚stīn də′fyü·zhən i‚kwā·zhən]
(statistical mechanics)
An equation which gives the mean square displacement caused by Brownian movement of spherical, colloidal particles in a gas or liquid.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.