A dispersion is a system in which distributed particles of one material are dispersed in a continuous phase of another material. The two phases may be in the same or different states of matter.
Dispersions are classified in a number of different ways, including how large the particles are in relation to the particles of the continuous phase, whether or not precipitation occurs, and the presence of Brownian motion. In general, dispersions of particles sufficiently large for sedimentation are called suspensions, while those of smaller particles are called colloids and solutions.
IUPAC definition
https://en.wikipedia.org/wiki/Dispersion_(chemistry)
Science and mathematics[edit]
Mathematics[edit]
- 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
- Dispersion point, a point in a topological space the removal of which leaves the space highly disconnected
Physics[edit]
- The dependence of wave velocity on frequency or wavelength:
- Dispersion (optics), for light waves
- Dispersion (water waves), for 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
- Dispersed particle resistance, a measured parameter to characterize battery active materials
Other sciences[edit]
- 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
- Dispersion polymerization, a polymerization process
- Velocity dispersion, the statistical variation of velocities about the mean velocity for a group of astronomical objects
https://en.wikipedia.org/wiki/Dispersion
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