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volcanoes


  1  definition  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Volcano  \Vol*ca"no\,  n.;  pl  {Volcanoes}.  [It.  volcano,  vulcano, 
  fr  L.  Vulcanus  Vulkan,  the  god  of  fire.  See  {Vulkan}.] 
  (Geol.) 
  A  mountain  or  hill,  usually  more  or  less  conical  in  form 
  from  which  lava,  cinders,  steam,  sulphur  gases,  and  the  like 
  are  ejected;  --  often  popularly  called  a  {burning  mountain}. 
 
  Note:  Volcanoes  include  many  of  the  most  conspicuous  and 
  lofty  mountains  of  the  earth,  as  Mt  Vesuvius  in  Italy 
  (4,000  ft  high),  Mt  Loa  in  Hawaii  (14,000  ft.), 
  Cotopaxi  in  South  America  (nearly  20,000  ft.),  which 
  are  examples  of  active  volcanoes.  The  crater  of  a 
  volcano  is  usually  a  pit-shaped  cavity,  often  of  great 
  size.  The  summit  crater  of  Mt  Loa  has  a  maximum  length 
  of  13,000  ft.,  and  a  depth  of  nearly  800  feet.  Beside 
  the  chief  crater,  a  volcano  may  have  a  number  of 
  subordinate  craters. 




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