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dispersion Definition

dis·per·sion (di spʉr′z̸hən, -s̸hən)

noun

  1. a dispersing or being dispersed
  2. the breaking up of light into component colored rays, as by means of a prism
  3. the resolution of a complex electromagnetic radiation into components in accordance with some characteristic, as wavelength or energy
  4. the variation or scattering of data around some average or central value
  5. a colloidal system with its dispersed particles and the medium in which these are suspended
  6. Diaspora (sense )

Etymology: ME dispersioun < OFr dispersion < L dispersio

dispersion Synonyms

dispersion

n.

dispersal, scattering, diffusion; see distribution 1.

dispersion (D) Telecom Definition

  1. The process by which light rays are distorted, scattered, or redirected differently depending on their wavelength.
  2. Specifically, the effect of different propagation speeds for different wavelengths of light. See also chromatic dispersion, material dispersion, modal dispersion, polarization mode dispersion, propagation, pulse dispersion, waveguide dispersion, and wavelength.

dispersion Usage Examples

Preposition: of

  • pollutant: Specific treatment of WEEE is necessary in order to avoid the dispersion of pollutants into the recycled material or waste stream.
  • particle: For example in Al-Cu, a very fine dispersion of q particles hardens the a phase.

Adjective modifier

  • colloidal: Further research interests are in the rheology of colloidal ceramic dispersions.
  • anomalous: The program has includes " Anomalous Dispersion " corrections for the correction of resonance effects in the absorption of x-rays.
  • aqueous: Subsequent acid oxidation of the type used on the original material again yielded an aqueous dispersion.
  • atmospheric: The models for atmospheric dispersion are based on the Gaussian plume model.
  • geographical: First there is the problem of geographical dispersion for potential clients.
  • geographic: It demonstrates that economic progress is not inevitably tied to geographic dispersion.

Modifies a noun

  • curve: The phase velocity dispersion curve thus produced is then used to calculate the material stiffness.
  • coefficient: Wallis S.G. & Manson J.R. 2004, Methods for predicting dispersion coefficients in rivers.
  • characteristic: The distance apart depends on the dispersion characteristics of the speaker.
  • stability: Dispersion stability can be achieved either via charge or steric stabilization.
  • relation: A general mirror mode dispersion relation for the arbitrary velocity distribution in a fully kinetic limit is obtained.
  • force: The dispersion forces set up would be enough to hold the folded structure together.

Noun used with modifier

  • phonon: The main analysis developments will be to develop methods to extract information about phonon dispersion curves.
  • velocity: The velocity dispersion of the cluster galaxies can be measured from optical spectra.
  • pigment: Transparency Artists ' Water Colors exhibit unrivaled transparency due to the unique pigment dispersion in the manufacture of the color.
  • pollutant: Accurate prediction of pollutant dispersion is an important area of environmental research.
  • pollution: Air pollution dispersion modeling was carried out to predict ground level pollution concentrations in the boro in 2004.
  • particle: Particle Size Characterization Dynamic Light Scattering ( DLS ) is a non-invasive method for measuring the size of molecules and particle dispersions.