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Word: heliograph (lookup usage) (lookup stats)


Meaning:

Noun:

  • A device for photographing the sun.
  • A heliogram.
  • An apparatus for signalling by means of a moveable mirror which reflects flashes of sunlight.
  • An instrument for measuring the intensity of sunlight.
  • obsolete A photograph.

Source: Wiktionary | Src Info »

Verb:

  • intransitive To send a heliograph.
  • transitive To send a message by heliograph.

Source: Wiktionary | Src Info »