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fissure

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fissure


  3  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Fissure  \Fis"sure\,  v.  t. 
  To  cleave;  to  divide;  to  crack  or  fracture. 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Fissure  \Fis"sure\,  n.  [L.  fissura,  fr  findere  fissum  to 
  cleave,  split;  akin  to  E.  bite:  cf  F.  fissure.] 
  A  narrow  opening,  made  by  the  parting  of  any  substance;  a 
  cleft;  as  the  fissure  of  a  rock. 
 
  {Cerebral  fissures}  (Anat.),  the  furrows  or  clefts  by  which 
  the  surface  of  the  cerebrum  is  divided;  esp.,  the  furrows 
  first  formed  by  the  infolding  of  the  whole  wall  of  the 
  cerebrum. 
 
  {Fissure  needle}  (Surg.),  a  spiral  needle  for  catching 
  together  the  gaping  lips  of  wounds.  --Knight. 
 
  {Fissure  of  rolando}  (Anat.),  the  furrow  separating  the 
  frontal  from  the  parietal  lobe  in  the  cerebrum. 
 
  {Fissure  of  Sylvius}  (Anat.),  a  deep  cerebral  fissure 
  separating  the  frontal  from  the  temporal  lobe.  See  Illust. 
  under  {Brain}. 
 
  {Fissure  vein}  (Mining),  a  crack  in  the  earth's  surface 
  filled  with  mineral  matter.  --Raymond. 
 
  From  WordNet  r  1.6  [wn]: 
 
  fissure 
  n  1:  a  long  narrow  depression  in  a  surface  [syn:  {crevice},  {cranny}, 
  {crack},  {chap}] 
  2:  a  long  narrow  opening  [syn:  {crack},  {cleft},  {crevice},  {scissure}] 
  3:  (anatomy)  a  long  narrow  slit  or  groove  that  divides  an  organ 
  into  lobes 
  v  :  break  into  fissures  or  fine  cracks 




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