Dispersion can refer to:

• Biological dispersal, the distribution of spores, fruits and their seeds, etc. Biological dispersal refers to those processes by which a Species maintains ecosystem
• A phenomenon that causes the separation of a wave into components of varying frequency:
  • Dispersion (optics) (see also Abbe number)
  • Dispersion (water waves)
• 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
  • Atmospheric pollution dispersion
• Statistical dispersion, quantifiable variation of measurements of differing members of a population
• Dispersion (geology), a process whereby sodic soil disperses when exposed to water
• Dispersion (finance), a measure for the statistical distribution of portfolio returns

In Optics, dispersion is the phenomenon in which the Phase velocity of a wave depends on its frequency In Physics and Optics, the Abbe number, also known as the V-number or constringence of a transparent material is a measure In Fluid dynamics, dispersion of water waves generally refers to Frequency dispersion In Materials science, dispersion is the fraction of atoms of a material exposed to the surface Dispersive mass transfer is the spreading of mass from highly concentrated areas to less concentrated areas Atmospheric dispersion modeling is the mathematical simulation of how air pollutants disperse in the ambient atmosphere. In Statistics, (statistical dispersion (also called statistical variability or variation) is variability or spread in a Variable or a Probability Dispersion occurs when a soil is sodic. When a sodic soil is wetted the Clay particles are forced apart Dispersion is a measure for the statistical distribution of portfolio returns

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