depinisyon kahulugan
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doc Definition of heliograph
    English to English
    noun
  • an apparatus for sending telegraphic messages by using a mirror to turn the sun's rays off and on
  • source: WordNet 3.0
  • A picture taken by heliography; a photograph.
  • source: Webster 1913
    verb
  • signal by means of a mirror and the using the sun's rays
  • source: WordNet 3.0
  • To telegraph, or signal, with a heliograph.
  • source: Webster 1913
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