HELIOGRAPH
\hˈɛlɪˌɒɡɹaf], \hˈɛlɪˌɒɡɹaf], \h_ˈɛ_l_ɪ__ˌɒ_ɡ_ɹ_a_f]\
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A picture taken by heliography; a photograph.
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An instrument for taking photographs of the sun.
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An apparatus for telegraphing by means of the sun's rays. See Heliotrope, 3.
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To telegraph, or signal, with a heliograph.
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To photograph by sunlight.
By Oddity Software
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A picture taken by heliography; a photograph.
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An instrument for taking photographs of the sun.
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An apparatus for telegraphing by means of the sun's rays. See Heliotrope, 3.
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To telegraph, or signal, with a heliograph.
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To photograph by sunlight.
By Noah Webster.
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An instrument for taking photographs of the sun.
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A photograph taken by sunlight.
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A mirror for signaling by flashes of light.
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Heliographic.
By James Champlin Fernald
By William Dodge Lewis, Edgar Arthur Singer