**Dispersion** may refer to:

In **physics**:

- The dependence of wave velocity on frequency or wavelength:
- Dispersion (optics), for light waves
- Dispersion (water waves)
- Acoustic dispersion, for sound waves
- Dispersion relation, the mathematical description of dispersion in a system
- Modal dispersion, spreading of signals in multimode fibers and waveguides by a distortion mechanism
- Polarization mode dispersion, a form of modal dispersion

- Dielectric dispersion, the dependence of the permittivity of a dielectric material on the frequency of an applied electric field

- Dispersive mass transfer, in fluid dynamics, the spreading of mass from areas of high to low concentration
- Atmospheric dispersion modeling, mathematical simulation of how air pollutants disperse in the ambient atmosphere

- London dispersion force, an instantaneous induced dipole-induced dipole

In **other sciences**:

- Biological dispersal, the distribution of animals, spores, fruits and their seeds, etc.
- Dispersion (chemistry), a system in which particles are dispersed in a continuous phase of a different composition
- Dispersion (geology), a process whereby sodic soil disperses when exposed to water
- Dispersion (materials science), the fraction of atoms of a material exposed to the surface
- Velocity dispersion, the statistical variation of velocities about the mean velocity for a group of astronomical objects

**Other uses**:

- Dispersion (finance), a measure for the statistical distribution of portfolio returns
- Statistical dispersion, a quantifiable variation of measurements of differing members of a population
- Index of dispersion, a normalized measure of the dispersion of a probability distribution

- Price dispersion, a variation in prices across sellers of the same item
- Wage dispersion, the amount of variation in wages encountered in an economy

### Famous quotes containing the word dispersion:

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—Johan Huizinga (1872–1945)

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