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heliotropism

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heliotropism


  2  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Heliotropism  \He`li*ot"ro*pism\,  n.  [Helio-  +  Gr  ?  to  turn.] 
  (Bot.) 
  The  phenomenon  of  turning  toward  the  light,  seen  in  many 
  leaves  and  flowers. 
 
  From  WordNet  r  1.6  [wn]: 
 
  heliotropism 
  n  :  an  orienting  response  to  the  sun 




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