heliograph
noun
a device for signaling by means of a movable mirror that reflects beams of light, especially sunlight, to a distance.
heliographically
-
a word derived from
heliograph.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
White was heliographically consulted, and all the arrangements for an advance on December 11 were made.
From A Handbook of the Boer War With General Map of South Africa and 18 Sketch Maps and Plans by
