Definitions for dispersiondɪˈspɜr ʒən, -ʃən

This page provides all possible meanings and translations of the word dispersion

Random House Webster's College Dictionary

dis•per•siondɪˈspɜr ʒən, -ʃən(n.)

  1. Ref: Also, dispersal.

  2. the variation of the index of refraction of a transparent substance, as glass, with the wavelength of light. the separation of white or compound light into its respective colors, as in the formation of a spectrum by a prism.

    Category: Optics

  3. the scattering of values of a statistical variable around the mean or median of a distribution.

    Category: Statistics

  4. Also called disperse′ sys`tem. a system of dispersed particles suspended in a solid, liquid, or gas.

    Category: Chemistry

  5. (cap.)

    Category: Judaism

    Ref: Diaspora (def. 1). 1

Origin of dispersion:

1350–1400; ME (< AF) < L

Princeton's WordNet

  1. dispersion, scattering(noun)

    spreading widely or driving off

  2. distribution, dispersion(noun)

    the spatial or geographic property of being scattered about over a range, area, or volume

    "worldwide in distribution"; "the distribution of nerve fibers"; "in complementary distribution"

  3. dispersion, dispersal, dissemination, diffusion(noun)

    the act of dispersing or diffusing something

    "the dispersion of the troops"; "the diffusion of knowledge"

Wiktionary

  1. dispersion(Noun)

    The state of being dispersed; dispersedness.

  2. dispersion(Noun)

    A process of dispersing.

  3. dispersion(Noun)

    The degree of scatter of data.

  4. dispersion(Noun)

    The separation of visible light by refraction or diffraction.

  5. dispersion(Noun)

    The removal of inflammation.

Webster Dictionary

  1. Dispersion(noun)

    the act or process of scattering or dispersing, or the state of being scattered or separated; as, the Jews in their dispersion retained their rites and ceremonies; a great dispersion of the human family took place at the building of Babel

  2. Dispersion(noun)

    the separation of light into its different colored rays, arising from their different refrangibilities

Freebase

  1. Dispersion

    In optics, dispersion is the phenomenon in which the phase velocity of a wave depends on its frequency, or alternatively when the group velocity depends on the frequency. Media having such a property are termed dispersive media. Dispersion is sometimes called chromatic dispersion to emphasize its wavelength-dependent nature, or group-velocity dispersion to emphasize the role of the group velocity. Dispersion is most often described for light waves, but it may occur for any kind of wave that interacts with a medium or passes through an inhomogeneous geometry, such as sound waves. A material's dispersion is measured by its Abbe number, V, with low Abbe numbers corresponding to strong dispersion.

Dictionary of Military and Associated Terms

  1. dispersion

    1. A scattered pattern of hits around the mean point of impact of bombs and projectiles dropped or fired under identical conditions. 2. In antiaircraft gunnery, the scattering of shots in range and deflection about the mean point of explosion. 3. The spreading or separating of troops, materiel, establishments, or activities which are usually concentrated in limited areas to reduce vulnerability. 4. In chemical and biological operations, the dissemination of agents in liquid or aerosol form. 5. In airdrop operations, the scatter of personnel and/or cargo on the drop zone. 6. In naval control of shipping, the reberthing of a ship in the periphery of the port area or in the vicinity of the port for its own protection in order to minimize the risk of damage from attack. See also circular error probable; convoy dispersal point; delivery error; deviation; dispersion error; horizontal error.


Translations for dispersion

Kernerman English Multilingual Dictionary

dispersal(noun)

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