- a permanent image formed on a glass plate by an early photographic process
- a signaling device that uses a mirror to flash the sun's rays to a distant observer
Origin of heliograph
helio- + -graph to signal or communicate by heliograph
heliograph
he·li·o·graphWebster's New World College Dictionary, Fifth Edition Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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MLA Style
"heliograph." YourDictionary, n.d. Web. 14 January 2019. <https://www.yourdictionary.com/heliograph>.
APA Style
heliograph. (n.d.). Retrieved January 14th, 2019, from https://www.yourdictionary.com/heliograph
heliograph
noun
- A device for transmitting messages by reflecting sunlight.
- A device capable of imaging the surface and outer regions of the sun.
verb
he·li·o·graphed, he·li·o·graph·ing, he·li·o·graphsverb
transitiveTo send (a message) by heliograph.
verb
intransitiveTo send a heliograph.
Related Forms:
- he′li·og′ra·pher
noun
- he′li·o·graph′ic
adjective
- he′li·og′ra·phy
noun
THE AMERICAN HERITAGE® DICTIONARY OF THE ENGLISH LANGUAGE, FIFTH EDITION by the Editors of the American Heritage Dictionaries. Copyright © 2016, 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Link to this page
Cite this page
MLA Style
"heliograph." YourDictionary, n.d. Web. 14 January 2019. <https://www.yourdictionary.com/heliograph>.
APA Style
heliograph. (n.d.). Retrieved January 14th, 2019, from https://www.yourdictionary.com/heliograph
Noun
(plural heliographs)
- 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.
Verb
(third-person singular simple present heliographs, present participle heliographing, simple past and past participle heliographed)
- To send a message by heliograph.
- (intransitive) To send a heliograph.
Origin
From helio- + -graph.
English Wiktionary. Available under CC-BY-SA license.
Link to this page
Cite this page
MLA Style
"heliograph." YourDictionary, n.d. Web. 14 January 2019. <https://www.yourdictionary.com/heliograph>.
APA Style
heliograph. (n.d.). Retrieved January 14th, 2019, from https://www.yourdictionary.com/heliograph
