Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A device for transmitting messages by reflecting sunlight.
  • noun A device capable of imaging the surface and outer regions of the sun.
  • intransitive verb To send (a message) by heliograph.
  • intransitive verb To send a heliograph.

from The Century Dictionary.

  • To communicate or signal by means of a heliograph.
  • To photograph.
  • noun A heliotrope; especially, a movable mirror used in signaling, surveying, etc., to flash a beam of light to a distance.
  • noun In photography: An instrument for taking photographs of the sun.
  • noun A picture taken by heliography; a photograph.

from the GNU version of the Collaborative International Dictionary of English.

  • noun A picture taken by heliography; a photograph.
  • noun An instrument for taking photographs of the sun.
  • noun An apparatus for telegraphing by means of the sun's rays. See Heliotrope, 3.
  • transitive verb To telegraph, or signal, with a heliograph.
  • transitive verb To photograph by sunlight.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun An apparatus for signalling by means of a moveable mirror which reflects flashes of sunlight.
  • noun A heliogram.
  • noun An instrument for measuring the intensity of sunlight.
  • noun A device for photographing the sun.
  • noun obsolete A photograph.
  • verb transitive To send a message by heliograph.
  • verb intransitive To send a heliograph.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • verb signal by means of a mirror and the using the sun's rays
  • noun an apparatus for sending telegraphic messages by using a mirror to turn the sun's rays off and on

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

From helio- + -graph.

Examples

Comments

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  • Olympian systems were naff,
    So Zeus had a word with his staff:
    "The line to Parnassus
    Is slow as molasses;
    Let's upgrade that heliograph!"

    October 29, 2014

  • Excellent!

    October 30, 2014

  • Thank you, bilby. I raise a cup of nectar.

    October 30, 2014