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
No Sentences Found for heliograph
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