in general, signifies the scattering or dissipating something. Hence

in Optics, is the same with the diver- gency of the rays of light.

Point of DISPERSSION, in Dioptrics, the point from which refracted rays begin to diverge, where their re- fraction renders them divergent.

DISPERSSION of Inflammation, in Medicine and Sur- gery, is the removing the inflammation, and restoring the inflamed part to its natural state.