1. (di-fuz′)To disseminate; to spread about. 2. (di-fus′)Disseminated; spread about; not restricted. [L. dif-fundo, pp. -fusus, to pour in different directions]
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dif·fuse dif-'yüs adj not concentrated or localized <\diffuse sclerosis>
1) to subject (as a light beam) to diffusion
2) to break up and distribute (incident light) by reflection (as from a rough surface) vi to undergo diffusion
Medical dictionary. 2011.