- [noun] (physics) the process of diffusing; the intermingling
of molecules in gases and liquids as a result of random thermal
agitation - [noun] the spread of social institutions (and myths
and skills) from one society to another - [noun] the property of
being diffused or dispersed - [noun] the act of dispersing or
diffusing something; "the dispersion of the troops"; "the
diffusion of knowledge" Synonyms: dispersion, dispersal,
dissemination