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ellipse

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ellipse


  2  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Ellipse  \El*lipse"\,  n.  [Gr.  ?,  prop.,  a  defect,  the  inclination 
  of  the  ellipse  to  the  base  of  the  cone  being  in  defect  when 
  compared  with  that  of  the  side  to  the  base:  cf  F.  ellipse. 
  See  {Ellipsis}.] 
  1.  (Geom.)  An  oval  or  oblong  figure,  bounded  by  a  regular 
  curve,  which  corresponds  to  an  oblique  projection  of  a 
  circle,  or  an  oblique  section  of  a  cone  through  its 
  opposite  sides.  The  greatest  diameter  of  the  ellipse  is 
  the  major  axis,  and  the  least  diameter  is  the  minor  axis. 
  See  {Conic  section},  under  {Conic},  and  cf  {Focus}. 
 
  2.  (Gram.)  Omission.  See  {Ellipsis}. 
 
  3.  The  elliptical  orbit  of  a  planet. 
 
  The  Sun  flies  forward  to  his  brother  Sun;  The  dark 
  Earth  follows  wheeled  in  her  ellipse.  --Tennyson. 
 
  From  WordNet  r  1.6  [wn]: 
 
  ellipse 
  n  :  a  closed  plane  curve  resulting  from  the  intersection  of  a 
  circular  cone  and  a  plane  cutting  completely  through  it 
  "the  sums  of  the  distances  from  the  foci  to  any  point  on 
  an  ellipse  is  constant"  [syn:  {oval}] 




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