dissipation vs dispersion

dissipation and dispersion both are nouns.

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

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

Other hypernyms of dissipation include scattering.

dissipation (noun)	dispersion (noun)
dissolute indulgence in sensual pleasure	the act of dispersing or diffusing something
useless or profitless activity; using or expending or consuming thoughtlessly or carelessly	the spatial or geographic property of being scattered about over a range, area, or volume
breaking up and scattering by dispersion	spreading widely or driving off