heliograph
IPA: hiɫioʊgræf
noun
- An apparatus for signalling by means of a moveable mirror which reflects flashes of sunlight.
- A heliogram.
- An instrument for measuring the intensity of sunlight.
- A device for photographing the sun.
- (obsolete) A photograph.
verb
- (transitive) To send a message by heliograph.
- (intransitive) To send a heliograph.
- (transitive, dated) To photograph by sunlight.
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Examples of "heliograph" in Sentences
- I'm pretty sure you didn't mean heliograph.
- The heliograph had some powerful advantages.
- I have promptly copied it over to the Heliograph article.
- The first Heliograph display was shown off to the world in 2003.
- Heliograph Peak was home to a nineteenth century heliograph station.
- The heliograph uses a mirror to reflect sunlight to a distant observer.
- Canada was the last major army to keep the heliograph as an issue item.
- This high point was used by the U.S. Army in the 1880s as a heliograph station.
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