Diffusion
WordNet
noun
(1) The act of dispersing or diffusing something
"The dispersion of the troops"
"The diffusion of knowledge"
(2) The property of being diffused or dispersed
(3) The spread of social institutions (and myths and skills) from one society to another
(4) (physics) the process of diffusing; the intermingling of molecules in gases and liquids as a result of random thermal agitation
WiktionaryText
Etymology
From diffusionem (accusative of diffusio), from verb diffundere.
Noun
- the act of diffusing or dispersing something, or the property of being diffused or dispersed; dispersion
- the scattering of light by reflection from a rough surface, or by passage through a translucent medium
- the intermingling of the molecules of a fluid due to random thermal agitation
- the spread of cultural or linguistic practices, or social institutions, in one or more communities
- Exchange of airborne media between regions in space in an apparently random motion of a small scale.
- the movement of water vapor from regions of high concentration (high water vapor pressure) toward regions of lower concentration.