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Definition of Heliograph
1. Verb. Signal by means of a mirror and the using the sun's rays.
2. Noun. An apparatus for sending telegraphic messages by using a mirror to turn the sun's rays off and on.
Definition of Heliograph
1. n. A picture taken by heliography; a photograph.
2. v. t. To telegraph, or signal, with a heliograph.
Definition of Heliograph
1. Noun. An apparatus for signalling by means of a moveable mirror which reflects flashes of sunlight. ¹
2. Noun. A heliogram. ¹
3. Noun. An instrument for measuring the intensity of sunlight. ¹
4. Noun. A device for photographing the sun. ¹
5. Noun. (obsolete) A photograph. ¹
6. Verb. (transitive) To send a message by heliograph. ¹
7. Verb. (intransitive) To send a heliograph. ¹
¹ Source: wiktionary.com
Definition of Heliograph
1. [v -ED, -ING, -S]
Medical Definition of Heliograph
1. Origin: Helio- + -graph 1. A picture taken by heliography; a photograph. 2. An instrument for taking photographs of the sun. 3. An apparatus for telegraphing by means of the sun's rays. See Heliotrope. Source: Websters Dictionary (01 Mar 1998)
Lexicographical Neighbors of Heliograph
Literary usage of Heliograph
Below you will find example usage of this term as found in modern and/or classical literature:
1. Proceedings of the Royal Society of London by Royal Society (Great Britain) (1872)
"US, relative to the Observations taken with the Kew heliograph." The Observatory,
Cranford, Middlesex, W., February Oth, 1872. MY DEAR Sin,—I beg herewith ..."
2. Journal by Institution of Electrical Engineers Radio Section (1875)
"The first paper read was— ON THE heliograph OF MR. ... The word heliograph, in
itself a good one, has been for years used to denominate at Kew Observatory ..."
3. Report of the Annual Meeting (1904)
"Exhibition of Photographs made with the Spectra-heliograph of the Yerkes Observatory.
By AR HINKS, MA 3. Radiation through a Foggy Atmosphere. ..."
4. Visual Signaling: Signal Corps, United States Army, 1910 by United States Army. Signal Corps (1910)
"Smoked or colored glasses are issued for the purpose of relieving the strain on
the eyes produced by reading heliograph signals. Care of apparatus. ..."
5. Military Signal Corps Manual (1918)
"THE heliograph Description.—The service heliograph equipment of the Signal Corps
consists of: " The heliograph is an instrument designed for the purpose of ..."
6. The Ancient Lowly: A History of the Ancient Working People from the Earliest by Cyrenus Osborne Ward (1900)
"... heliograph—Author's Visit to the Temple of Oracles—Keen Criticism of Reinach,
... heliograph ..."
7. The Camera and the Pencil by Marcus Aurelius Root (1864)
"... not fruit of effort—Camera requires not less genius than pencil—heliograph
er, like painter, must rouse in sitter his best mood—How—Chemistry, ..."