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catalyst

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catalyst


  1  definition  found 
 
  From  WordNet  r  1.6  [wn]: 
 
  catalyst 
  n  1:  (chemistry)  a  substance  that  initiates  or  accelerates  a 
  chemical  reaction  without  itself  being  affected  [syn:  {accelerator}] 
  [ant:  {anticatalyst}] 
  2:  something  that  causes  an  important  event  to  happen;  "the 
  invasion  acted  as  a  catalyst  to  unite  the  country" 




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