Medical Dictionary


noun dif·fu·sion \dif-ˈyü-zhən\

Medical Definition of DIFFUSION

:  the process whereby particles of liquids, gases, or solids intermingle as the result of their spontaneous movement caused by thermal agitation and in dissolved substances move from a region of higher to one of lower concentration
a :  reflection of light by a rough reflecting surface b :  transmission of light through a translucent material
dif·fu·sion·al \-ˈyüzh-nəl, -ən-əl\ adjective


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