dissemination vs dispersion

dissemination and dispersion both are nouns.

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

As nouns, dissemination and dispersion are synonyms defined as:

dissemination and dispersion: the act of dispersing or diffusing something

Other synonyms of dissemination include diffusion, dispersal.

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

dissemination: 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 dissemination include distribution.

dissemination (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 opening of a subject to widespread discussion and debate	spreading widely or driving off