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5 definitions found

From: DICT.TW English-Chinese Dictionary 英漢字典

 dif·fu·sion /dɪˈfjuʒən/

From: DICT.TW English-Chinese Medical Dictionary 英漢醫學字典

 dif·fu·sion /dɪfˈjuʒən/ 名詞

From: Network Terminology

 擴散 漫射

From: Webster's Revised Unabridged Dictionary (1913)

 Dif·fu·sion n.
 1. The act of diffusing, or the state of being diffused; a spreading; extension; dissemination; circulation; dispersion.
    A diffusion of knowledge which has undermined superstition.   --Burke.
 2. Physiol. The act of passing by osmosis through animal membranes, as in the distribution of poisons, gases, etc., through the body. Unlike absorption, diffusion may go on after death, that is, after the blood ceases to circulate.
 Syn: -- Extension; spread; propagation; circulation; expansion; dispersion.

From: WordNet (r) 2.0

      n 1: (physics) the process of diffusing; the intermingling of
           molecules in gases and liquids as a result of random
           thermal agitation
      2: the spread of social institutions (and myths and skills)
         from one society to another
      3: the property of being diffused or dispersed [syn: dissemination]
      4: the act of dispersing or diffusing something; "the
         dispersion of the troops"; "the diffusion of knowledge"
         [syn: dispersion, dispersal, dissemination]