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dispersion [dɪs'pɜ:ʃ(ə)n] abbr.
abbr., polym. d.
jewl. The splitting of white light into its constituent spectral colors, the rainbow colors, when it passes through inclined surfaces, such as those on a prism or faceted gem. Dispersion in gemstones is called fire.
mil., logist. The spreading or separating of troops, materiel, establishments, or activities which are usually concentrated in limited areas to reduce vulnerability. 2. In airdrop operations, the scatter of personnel and/or cargo on the drop zone. 3. 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. (UKR/NATO); A scattered pattern of hits around the mean point of impact of bombs and projectiles dropped or fired under identical conditions. 2. In anti-aircraft gunnery, the scattering of shots in range and deflection about the mean point of explosion. 3. In chemical and biological warfare, the dissemination of agents in liquid, vapour or aerosol form. (FRA)
USA The spreading or separating of troops, materiel, establishments, or activities, which are usually concentrated in limited areas to reduce vulnerability (JP 5-0); In chemical and biological operations, the dissemination of agents in liquid or aerosol form (JP 3-41); In airdrop operations, the scatter of personnel and/or cargo on the drop zone (JP 3-17); 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 (JP 4-01.2)