Heliographic

What is Heliographic?

Heliographic definition and meaning on Dictionary terms:
noun
a device for signaling by means of a movable mirror that reflects beams of light, especially sunlight, to a distance.
Astronomy. photoheliograph.
Meteorology. an instrument for recording the duration and intensity of sunshine.
Photography, Printing. an early type of photoengraving made on a metal plate coated with sensitized asphalt.

verb (used with or without object)
to communicate by heliograph.

 

reference: www.dictionary.com/browse/heliographic

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