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extrusive

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extrusive


  2  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Extrusive  \Ex*tru"sive\,  a.  [See  {Extrude}.]  (Geol.) 
  Forced  out  at  the  surface;  as  extrusive  rocks;  --  contrasted 
  with  {intrusive}. 
 
  From  WordNet  r  1.6  [wn]: 
 
  extrusive 
  adj  :  (geology)  of  rock  material;  forced  out  while  molten  through 
  cracks  in  the  earth's  surface  [ant:  {intrusive}] 




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