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diffusion

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diffusion


  2  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Diffusion  \Dif*fu"sion\,  n.  [L.  diffusio:  cf  F.  diffusion.] 
  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  1.6  [wn]: 
 
  diffusion 
  n  1:  a  process  of  intermingling  molecules  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}] 




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