[dis.per.sion] n (14c) 1 cap: diaspora 1a
2: the act or process of dispersing: the state of being dispersed
3: the scattering of the values of a frequency distribution from an average
4: the separation of light into colors by refraction or diffraction with formation of a spectrum; also: the separation of radiation into components in accordance with some varying characteristic (as energy)
5. a: a dispersed substance b: a system consisting of a dispersed substance and the medium in which it is dispersed: colloid 2b