2  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Geodesy  \Ge*od"e*sy\,  n.  [Gr.  ?;  ge`a,  gh^,  the  earth  +  ?  to 
  divide:  cf  F.  g['e]od['e]sie.]  (Math.) 
  That  branch  of  applied  mathematics  which  determines,  by  means 
  of  observations  and  measurements,  the  figures  and  areas  of 
  large  portions  of  the  earth's  surface,  or  the  general  figure 
  and  dimenshions  of  the  earth;  or  that  branch  of  surveying  in 
  which  the  curvature  of  the  earth  is  taken  into  account,  as  in 
  the  surveys  of  States,  or  of  long  lines  of  coast. 
 
  From  WordNet  r  1.6  [wn]: 
 
  geodesy 
  n  :  the  branch  of  geology  that  studies  the  shape  of  the  earth 
  and  the  determination  of  the  exact  position  of 
  geographical  points 

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