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callus

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callus


  2  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Callus  \Cal"lus\,  n.  [L.  See  {Callous}.] 
  1.  (Med.) 
  a  Same  as  {Callosity}. 
  (b  The  material  of  repair  in  fractures  of  bone;  a 
  substance  exuded  at  the  site  of  fracture,  which  is  at 
  first  soft  or  cartilaginous  in  consistence,  but  is 
  ultimately  converted  into  true  bone  and  unites  the 
  fragments  into  a  single  piece. 
 
  2.  (Hort.)  The  new  formation  over  the  end  of  a  cutting, 
  before  it  puts  out  rootlets. 
 
  From  WordNet  r  1.6  [wn]: 
 
  callus 
  n  1:  an  area  of  skin  that  is  thick  or  hard  from  continual 
  pressure  or  friction  (as  the  sole  of  the  foot)  [syn:  {callosity}] 
  2:  bony  tissue  formed  during  the  healing  of  a  fractured  bone 
  3:  (botany)  an  isolated  thickening  of  tissue,  especially  a 
  stiff  protuberance  on  the  lip  of  an  orchid 
  v  1:  cause  a  callus  to  form  on  "The  long  march  had  callused  his 
  feet" 
  2:  form  a  callus  or  calluses;  "His  foot  callused" 




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