- 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.
Link to this page
Cite this page
MLA Style
"Heliograph." YourDictionary. LoveToKnow. www.yourdictionary.com/Heliograph.
APA Style
Heliograph. (n.d.). In YourDictionary. Retrieved 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. LoveToKnow. www.yourdictionary.com/Heliograph.
APA Style
Heliograph. (n.d.). In YourDictionary. Retrieved 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. LoveToKnow. www.yourdictionary.com/Heliograph.
APA Style
Heliograph. (n.d.). In YourDictionary. Retrieved from https://www.yourdictionary.com/Heliograph
