Definition for optical density - Oxford Dictionaries Online (World English)

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	optical density (op\|tic¦al dens\|ity) noun Physics the degree to which a refractive medium retards transmitted rays of light.		More words in this category angular attractive carrier discharge forward scattering grand unified theory lux magnetoresistance magnetosphere nematic nuclear radiation pattern scattering angle semiconductor soft wiggler wormhole Nearby Words optic nerve optic neuritis optic tract optical optical activity optical axis optical bench optical brightener optical character recognition optical density optical double optical fibre optical glass optical illusion optical isomer optical microscope optical path optical rotation optical scanner