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heliograph

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heliograph


  3  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Heliograph  \He"li*o*graph\,  v.  t. 
  1.  To  telegraph,  or  signal,  with  a  heliograph. 
 
  2.  To  photograph  by  sunlight. 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Heliograph  \He"li*o*graph\,  n.  [Helio-  +  -graph.]ets> 
  1.  A  picture  taken  by  heliography;  a  photograph. 
 
  2.  An  instrument  for  taking  photographs  of  the  sun. 
 
  3.  An  apparatus  for  telegraphing  by  means  of  the  sun's  rays. 
  See  {Heliotrope},  3. 
 
  From  WordNet  r  1.6  [wn]: 
 
  heliograph 
  n  :  an  apparatus  for  sending  telegraphic  messages  by  using  a 
  mirror  to  turn  the  sun's  rays  off  and  on 
  v  :  signal  with  a  heliograph 




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