Dispersion
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2008-06-22T08:46:17Z
Crowsnest
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{{wiktionarypar|dispersion}}
'''Dispersion''' can refer to:
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===Biology===
*[[Biological dispersal]], the distribution of spores, fruits and their seeds, etc.
===Physics===
*A phenomenon that causes the separation of a wave into components of varying frequency:
**[[Dispersion relation]]
**[[Dispersion (optics)]] (see also [[Abbe number]])
**[[Dispersion (water waves)]]
**[[Dielectric dispersion]]
*[[Dispersive mass transfer]], in fluid dynamics, the spreading of mass from areas of high to low concentration
**[[Atmospheric pollution dispersion]]
*[[Modal dispersion]], spreading signals in multimode fibers and waveguides by a distortion mechanism
**[[Polarization mode dispersion]] (PMD), different polarizations of light in a waveguide may travel at different speeds due to random imperfections and asymmetries of the waveguide
===Geology===
*[[Dispersion (geology)]], a process whereby sodic soil disperses when exposed to water
===Materials science===
*[[Dispersion (materials science)]], the fraction of atoms of a material exposed to the surface
===Statistics===
*[[Statistical dispersion]], quantifiable variation of measurements of differing members of a population
**[[Coefficient of dispersion]], a measure to quantify whether a set of observed occurrences are relatively clustered or dispersed
===Economics and finance===
*[[Dispersion (finance)]], a measure for the statistical distribution of portfolio returns
*[[Price dispersion]], variation in prices across sellers of the same item
*[[Wage dispersion]] refers to the amount of variation in wages encountered in an economy
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