| 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) |