definition of
dispersion

[1] #1 dispersion n. [scattering] spreading widely or driving off. wn

[2] #2 dispersion n. [distribution] the spatial or geographic property of being scattered about over a range, area, or volume; "worldwide in distribution"; "the distribution of nerve fibers"; "in complementary distribution". wn

[3] #3 dispersion n. [dispersal, dissemination, diffusion] the act of dispersing or diffusing something; "the dispersion of the troops"; "the diffusion of knowledge". wn