Dispersion refers to the spreading out, scattering, or separating of substances or particles in different directions. It is a phenomenon commonly studied in the fields of physics, chemistry, and engineering to understand how particles or waves are distributed in a given medium. Dispersion can occur in various forms, such as in the dispersion of light in a prism, dispersion of pollutants in the atmosphere, or dispersion of particles in a fluid. Researchers study dispersion to better understand how substances move and interact in different environments, as well as to develop strategies for controlling and mitigating dispersion effects.