dispersion
[C/U] Both
pl: dispersions
This term carries a sense of scattering or breaking apart from a centralized point. It is often used in scientific or formal contexts to describe a transition from a concentrated state to a spread-out state, whether that be physical bodies, light waves, or numerical values. While similar to "diffusion," dispersion often implies a more structured or systematic separation, such as the specific splitting of colors in a prism or the calculated spread of data points in a statistical model, rather than a random blending.
Uncountable when referring to the general physical or optical process of spreading. Countable when referring to specific instances or different types of distributions in a study.