- [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