noun (n)

• spreading widely or driving off(noun.event)

  Synonym:
  scattering
  

  source: wordnet30
• the spatial or geographic property of being scattered about over a range, area, or volume(noun.attribute)

  Synonym:
  distribution
  Antonym:
  compactness, concentration, denseness, density, tightness
  

  source: wordnet30
• the act of dispersing or diffusing something(noun.act)

  Example:
  The dispersion of the troops.
  

  Synonym:
  diffusion, dispersal, dissemination
  

  source: wordnet30
• The act or process of scattering or dispersing, or the state of being scattered or separated; as, the Jews in their dispersion retained their rites and ceremonies; a great dispersion of the human family took place at the building of Babel.(noun)

  source: webster1913