| scattering, radiation | The process in which energy is removed from a beam of light or other electromagnetic radiation and emitted without appreciable change in wavelength. May be considered as the change in direction of a particle or photon owing to a collision with another particle or system. (12 Dec 1998) |
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| scatula | A square pillbox. Origin: Mediev. L. A rectangular figure whose width is one-tenth of its length (05 Mar 2000) |
| scatter |
disperse: to cause to separate and go in different directions; "She waved her hand and scattered the crowds" disperse: move away from each other; "The crowds dispersed"; "The children scattered in all directions when the teacher approached"; distribute loosely; "He scattered gun powder under the wagon" sow by scattering; "scatter seeds" a haphazard distribution in all directions break up: cause to separate; "break up kidney stones"; "disperse particles" the act of scattering spread: strew or distribute over an area; "He spread fertilizer over the lawn"; "scatter cards across the table"
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| scatter |
1. Same as scattering; or, sometimes used in referring to the scattered radiation. 2. The relative dispersion of points on a graph, especially with respect to a mean value, or any curve used to represent the points. See scatter diagram, spread.
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| scattered radiation |
Radiation that has undergone one or more scattering processes. See also diffuse radiation, single-scattering, multiple-scattering.
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| scatter diagram |
(Also called scattergram.) A plot representing corresponding observed values of two variables x and y as points in Cartesian coordinates. If the two variables are functionally related, the points will be bunched, but if they are not functionally related, the points will be scattered uniformly over the plane. Scatter diagrams are used to explore the influence of one variable upon another, strong relationships being revealed as a concentration around a definite curve.
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| scattering |
A specification of the angular distribution of the electromagnetic energy scattered by a particle or a scattering medium. The differential (scattering) cross section is defined as the ratio of the intensity of radiant energy scattered in a given direction to the incident irradiance and thus has dimensions of area per unit solid angle. The symbol is frequently used for scattering cross section and d /d for the differential cross section.
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| SCAT | distribute loosely |
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| SCAT | sow by scattering |
| SCAT | move away from each other |
| SCAT | to cause to separate and go in different directions, of crowds, for example |
| SCAT | strew or distribute over an area |
| SCAT | small pin usually worn in groups of two or more |
| SCAT | a small rug |
| SCAT | a flighty and disorganized person |
| SCAT | absent-mindedly irresponsible |
| SCAT | lacking sense or discretion |
| SCAT | lacking orderly continuity |
| SCAT | occurring or distributed over widely spaced and irregular intervals in time or space |