Biological dispersal, the distribution of spores, fruits and their seeds, etc.

Atmospheric pollution dispersion

Statistical dispersion, quantifiable variation of measurements of differing members of a population

Dispersion (water waves)

Dispersion (finance), a measure for the statistical distribution of portfolio returns

Dispersion (materials science), a stable or unstable system of fine particles, evenly distributed in a medium

Dispersive mass transfer, in fluid dynamics, the spreading of mass from areas of high to low concentration

Dispersion (geology), a process whereby sodic soil disperses when exposed to water

Dispersion (optics) (see also Abbe number)