Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A device for transmitting messages by reflecting sunlight.
  • n. A device for photographing the sun.
  • transitive v. To send (a message) by heliograph.
  • intransitive v. To send a heliograph.

from Wiktionary, Creative Commons Attribution/Share-Alike License

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

from the GNU version of the Collaborative International Dictionary of English

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

from The Century Dictionary and Cyclopedia

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

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

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

Etymologies

From helio- + -graph. (Wiktionary)

Examples

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Comments

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

    October 30, 2014

  • Excellent!

    October 30, 2014

  • 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