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diffraction

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diffraction


  2  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Diffraction  \Dif*frac"tion\,  n.  [Cf.  F.  diffraction.]  (Opt.) 
  The  deflection  and  decomposition  of  light  in  passing  by  the 
  edges  of  opaque  bodies  or  through  narrow  slits,  causing  the 
  appearance  of  parallel  bands  or  fringes  of  prismatic  colors, 
  as  by  the  action  of  a  grating  of  fine  lines  or  bars. 
 
  Remarked  by  Grimaldi  (1665),  and  referred  by  him  to  a 
  property  of  light  which  he  called  diffraction. 
  --Whewell. 
 
  {Diffraction  grating}.  (Optics)  See  under  {Grating}. 
 
  {Diffraction  spectrum}.  (Optics)  See  under  {Spectrum}. 
 
  From  WordNet  r  1.6  [wn]: 
 
  diffraction 
  n  :  when  light  passes  sharp  edges  or  goes  through  narrow  slits 
  the  rays  are  deflected  and  produce  fringes  of  light  and 
  dark  bands 




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