noun
: dispersion (as of light by an optical grating) in which the separation of components in any one spectrum increases continuously and almost uniformly with the wavelength, the separation being a monotonic function of the dispersion variable
noun
: dispersion (as of light by an optical grating) in which the separation of components in any one spectrum increases continuously and almost uniformly with the wavelength, the separation being a monotonic function of the dispersion variable
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012