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perigeum

perigeum


  1  definition  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Perigee  \Per"i*gee\,  Perigeum  \Per`i*ge"um\,  n.  [NL.  perigeum, 
  fr  Gr  ?  about  near  +  ?  the  earth:  cf  F.  p['e]rig['e]e.] 
  (Astron.) 
  That  point  in  the  orbit  of  the  moon  which  is  nearest  to  the 
  earth;  --  opposed  to  {apogee}.  It  is  sometimes  but  rarely, 
  used  of  the  nearest  points  of  other  orbits,  as  of  a  comet,  a 
  planet,  etc  Called  also  {epigee},  {epigeum}.