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umbilicmore about umbilic

umbilic

 

  3  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Umbilic  \Um*bil"ic\,  n.  [From  L.  umbilicus:  cf  F.  ombilic.  See 
  {Navel}.] 
  1.  The  navel;  the  center.  [Obs.]  ``The  umbilic  of  the 
  world.''  --Sir  T.  Herbert. 
 
  2.  (Geom.)  An  umbilicus.  See  {Umbilicus},  5 
  b  . 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Umbilic  \Um*bil"ic\,  a.  (Anat.) 
  See  {Umbilical},  1. 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Umbilicus  \Um`bi*li"cus\,  n.  [L.  See  {Umbilic}.] 
  1.  (Anat.)  The  depression,  or  mark,  in  the  median  line  of  the 
  abdomen,  which  indicates  the  point  where  the  umbilical 
  cord  separated  from  the  fetus;  the  navel. 
 
  2.  (Gr.  &  Rom.  Antiq.)  An  ornamented  or  painted  ball  or  boss 
  fastened  at  each  end  of  the  stick  on  which  manuscripts 
  were  rolled.  --Dr.  W.  Smith. 
 
  3.  (Bot.)  The  hilum. 
 
  4.  (Zo["o]l.) 
  a  A  depression  or  opening  in  the  center  of  the  base  of 
  many  spiral  shells. 
  b  Either  one  of  the  two  apertures  in  the  calamus  of  a 
  feather. 
 
  5.  (Geom.) 
  a  One  of  foci  of  an  ellipse,  or  other  curve.  [Obs.] 
  b  A  point  of  a  surface  at  which  the  curvatures  of  the 
  normal  sections  are  all  equal  to  each  other  A  sphere 
  may  be  osculatory  to  the  surface  in  every  direction  at 
  an  umbilicus.  Called  also  {umbilic}.




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