Dis*per"sion (?), n.
[Cf. F. dispersion.]
1. 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.
The days of your slaughter and of your
dispersions are accomplished.
Jer. xxv.
34. 2. (Opt.) The separation of light into
its different colored rays, arising from their different
refrangibilities.
Dispersion of the optic
axes (Crystallog.), the separation of the optic axes in biaxial crystals, due to the fact that the axial angle has different values for the different colors of the spectrum.