Main Entry: dis·per·sion

Pronunciation: \dis-ˈpər-zhən, -shən\

Function: noun

1 : the act or process of dispersing : the state of being dispersed
2 : 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)
3 a : a dispersed substance b : a system consisting of a dispersed substance and the medium in which it is dispersed : colloid 2b—called also disperse system