diffusion vs dispersion

diffusion and dispersion both are nouns.

Word	Noun	Adjective	Verb	Adverb
diffusion	Yes	No	No	No
dispersion	Yes	No	No	No

As nouns, diffusion and dispersion are synonyms defined as:

Other synonyms of diffusion include dispersal, dissemination.

As nouns, dispersion is a hypernym of diffusion; that is, dispersion is a word with a broader meaning than diffusion:

diffusion: the property of being diffused or dispersed
dispersion: the spatial or geographic property of being scattered about over a range, area, or volume

Other hypernyms of diffusion include distribution.

diffusion (noun)	dispersion (noun)
the act of dispersing or diffusing something	the act of dispersing or diffusing something
the property of being diffused or dispersed	the spatial or geographic property of being scattered about over a range, area, or volume
the spread of social institutions (and myths and skills) from one society to another	spreading widely or driving off
(physics) the process in which there is movement of a substance from an area of high concentration of that substance to an area of lower concentration