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hemisphere

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hemisphere


  2  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Hemisphere  \Hem"i*sphere\,  n.  [L.  hemisphaerium  Gr  ?;  ?  half  = 
  ?  sphere:  cf  F.  h['e]misph[`e]re.  See  {Hemi-},  and 
  {Sphere}.] 
  1.  A  half  sphere;  one  half  of  a  sphere  or  globe,  when  divided 
  by  a  plane  passing  through  its  center. 
 
  2.  Half  of  the  terrestrial  globe,  or  a  projection  of  the  same 
  in  a  map  or  picture. 
 
  3.  The  people  who  inhabit  a  hemisphere. 
 
  He  died  .  .  .  mourned  by  a  hemisphere.  --J.  P. 
  Peters. 
 
  {Cerebral  hemispheres}.  (Anat.)  See  {Brain}. 
 
  {Magdeburg  hemispheres}  (Physics),  two  hemispherical  cups 
  forming,  when  placed  together,  a  cavity  from  which  the  air 
  can  be  withdrawn  by  an  air  pump;  --  used  to  illustrate  the 
  pressure  of  the  air.  So  called  because  invented  by  Otto 
  von  Guericke  at  Magdeburg. 
 
  From  WordNet  r  1.6  [wn]: 
 
  hemisphere 
  n  1:  half  of  the  terrestrial  globe 
  2:  half  of  a  sphere 
  3:  either  half  of  the  cerebrum  [syn:  {cerebral  hemisphere}] 




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