'Dispersal' definitions:

Definition of 'dispersal'

From: WordNet
noun
The act of dispersing or diffusing something; "the dispersion of the troops"; "the diffusion of knowledge" [syn: dispersion, dispersal, dissemination, diffusion]

Definition of 'Dispersal'

From: GCIDE
  • Dispersal \Dis*per"sal\, n. The act or result of dispersing or scattering; dispersion. --Darwin. [1913 Webster]